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Understanding the failure of a behavior change intervention to reduce risk behaviors for avian influenza transmission among backyard poultry raisers in rural Bangladesh: a focused ethnography
© The Author(s). 2016
Received: 26 May 2016
Accepted: 18 August 2016
Published: 24 August 2016
The spread of the highly pathogenic avian influenza (HPAI) H5N1 virus among poultry and humans has raised global concerns and has motivated government and public health organizations to initiate interventions to prevent the transmission of HPAI. In Bangladesh, H5N1 became endemic in poultry and seven human H5N1 cases have been reported since 2007, including one fatality. This study piloted messages to increase awareness about avian influenza and its prevention in two rural communities, and explored change in villagers’ awareness and behaviors attributable to the intervention.
During 2009–10, a research team implemented the study in two rural villages in two districts of Bangladesh. The team used a focused ethnographic approach for data collection, including informal interviews and observations to provide detailed contextual information about community response to a newly emerging disease. They collected pre-intervention qualitative data for one month. Then another team disseminated preventive messages focused on safe slaughtering methods, through courtyard meetings and affixed posters in every household. After dissemination, the research team collected post-intervention data for one month.
More villagers reported hearing about ‘bird flu’ after the intervention compared to before the intervention. After the intervention, villagers commonly recalled changes in the color of combs and shanks of poultry as signs of avian influenza, and perceived zoonotic transmission of avian influenza through direct contact and through inhalation. Consequently the villagers valued covering the nose and mouth while handling sick and dead poultry as a preventive measure. Nevertheless, the team did not observe noticeable change in villagers’ behavior after the intervention. Villagers reported not following the recommended behaviors because of the perceived absence of avian influenza in their flocks, low risk of avian influenza, cost, inconvenience, personal discomfort, fear of being rebuked or ridiculed, and doubt about the necessity of the intervention.
The villagers’ awareness about avian influenza improved after the intervention, however, the intervention did not result in any measurable improvement in preventive behaviors. Low cost approaches that promote financial benefits and minimize personal discomfort should be developed and piloted.
The spread of the highly pathogenic avian influenza (HPAI) H5N1 virus among poultry and humans has raised global concerns and has motivated government and public health organizations to initiate interventions to prevent the transmission of HPAI in different countries [1–9]. In 2006, the Government of Bangladesh adopted a national pandemic influenza preparedness plan that included risk communication through mass media, workshops, posters, and leaflets, and disseminated a set of 10-step messages to prevent poultry to human transmission nationwide [10, 11]. A nationwide survey conducted in 2007 showed that 30 % of backyard poultry raisers reported having heard of avian influenza; among those who heard, 53 % did not know any of its signs, 78 % did not know how birds contracted the virus, and the most frequently (38 %) mentioned route of human infection was an incorrect belief that people were infected by eating meat or eggs of infected poultry . Backyard poultry raisers are rural residents, who raise indigenous breeds with less than 50 free-range chickens, ducks, and/or geese per flock reared around the family’s domicile . A subsequent qualitative study among backyard poultry raisers conducted in 2008 found that even when the Government of Bangladesh’s preventive messages reached the community, backyard raisers either did not know about avian influenza or did not believe that avian influenza could infect humans and most continued their usual practices of handling and slaughtering of sick poultry and disposal of dead poultry .
A principal pathway of human infection with the HPAI virus is close contact with infected birds [15–17]. Handling and slaughtering of sick and dead poultry has been associated with many human cases of H5N1 and has been identified as some of the most risky behaviors for contagion [15, 18–22]. Bangladesh has reported 549 confirmed poultry outbreaks of HPAI H5N1 in 52 out of 64 districts from 2007 to 2013  and seven human H5N1 cases from 2008 to 2015, including one fatality; all of these cases were exposed to slaughtering of infected poultry [24–28]. Slaughtering sick birds is a common practice in Bangladesh [13, 14]. Preventing rural raisers from consuming sick poultry appears difficult, since poultry are a valued resource to the raisers . These low-income households recover some of their financial loss by consuming sick poultry , which appears to be a more salient issue for these raisers than avoiding an improbable H5N1 infection. Studies in other low-income settings have also reported practices of rejecting standard recommendations or adopting risky strategies, including slaughtering sick poultry, to limit financial losses despite mass communication campaigns on avian influenza prevention [2, 6–9, 30].
In order to make behavior change campaigns more context-appropriate and feasible for low-income communities, it is important to understand villagers’ perception about their risk and about the standard preventive recommendations. Ethnographic research can inform the development of assessment tools as well as provide fertile details to design or evaluate interventions by contextualizing beliefs and behaviors . Compared to a traditional ethnographic approach, the focused ethnographic method is useful to explore perceptions or behaviors pertaining to a specific area from an emic perspective, that is the local community’s perspective, among a limited number of people within a shorter period of time . The relationships between knowledge or perception and specific behaviors can be best understood from situations in which the relevant behavior is directly evident (e.g., when villagers actually slaughter sick poultry). These observations can provide detailed contextual information on community response to a newly emerging disease  and nuanced understanding of the strengths and limitations of interventions targeted for such a disease. This study piloted recommendations designed to increase awareness about avian influenza and preventive practices to reduce risk of transmission from poultry to humans in two rural communities, and used a focused ethnographic approach to explore change in villagers’ awareness and behaviors attributable to the intervention, and the acceptability and feasibility of the recommended actions.
We conducted this study in two rural villages, one from each of the districts of Rajshahi and Chittagong from June to August 2009. Rajshahi is the largest and Chittagong the third largest poultry raising area in Bangladesh . We selected these two sites to capture practices in two geographically and socio-culturally distinct places of the country. We purposively selected the villages for their small size, accessibility, and being typical of the region in terms of demographic and geographic characteristics, i.e., agriculture as the main occupation, a Muslim majority and located in floodplains. The villages had not reported any avian influenza outbreak when they were selected.
Developing intervention recommendations and materials
Data collection before intervention
Total number of informal interviews and observations used to explore different topics with informants in Rajshahi and Chittagong villages, Bangladesh, 2009
Awareness on avian influenza
Housing sick poultry
Selling/buying sick poultry
Disposing carcasses or offal/blood of sick poultry
Slaughtering sick poultry
Cleaning site/tools after slaughtering sick poultry
Hand hygiene after slaughtering/handling sick/dead poultry
Covering nose/mouth while slaughtering/handling sick/dead poultry
Keeping children away from slaughtering site
Throughout the fieldwork, observation was the most important tool for data collection. The researchers conducted observations whenever they encountered slaughtering of sick poultry and/or handling of sick or dead poultry or when called upon by the villagers. The researchers conducted the observations using a guideline (Appendix 1) to take notes on handling, slaughtering, disposal, hygiene practices and the presence of children during the events. No set time duration was followed for an observation session.
The researchers conducted informal interviews with members of households, where they conducted observations and other poultry raising households. Researchers selected the informants purposively based on their role in raising or slaughtering poultry and their willingness to be interviewed. Researchers often conducted informal interviews immediately after observations. They conducted face-to-face interviews at informants’ preferred time and location, usually in their dwellings. Some interviews were scheduled, while others occurred spontaneously, for example, during villagers’ free time, or after a slaughtering or while transporting a sick poultry for selling. The team used a guideline (Appendix 2) to explore different topics. Probing questions were often derived from the participants’ responses thus the same probing questions were not always asked of all participants. The topic of an interview session often depended on a particular event relating to sick or dead poultry either observed by the researchers or informed by the villagers. The interviews were conducted as conversations with a natural flow instead of a structured question-answer session with fixed duration. Information collected through observations was often explored during interviews. The research team took field notes and recorded the informal interviews using audio recorders. The team also maintained ethnographic diaries to record daily detailed field notes throughout the fieldwork which helped to contextualize the data.
After one month, a separate team of three anthropologists and sociologists (the ‘intervention team’, RS and MSI), invited all villagers and disseminated the intervention messages through hour-long courtyard meetings where they used the story flipchart (two meetings in the village in Rajshahi and three in the village in Chittagong). During these meetings, the intervention team also mentioned the consequences of not following the preventive practices with an idea of number of poultry and humans infected in avian influenza all over Bangladesh. We used separate teams for intervention and data collection to reduce bias that might have resulted from being observed or interviewed by the same person who disseminated the recommendations. Children’s participation was particularly emphasized during these meetings because they play role in disseminating information among their family members. The intervention team used local terms during the dissemination. The intervention team conducted the meetings using an interactive approach where villagers asked questions and the intervention team answered the villagers’ queries. After the meeting, the intervention team provided and affixed posters (Fig. 1) on a frequently visible wall inside or outside all households in each of the study villages and left the village after dissemination.
Data collection after intervention
After the dissemination, there was no reminder of the intervention except the presence of posters and the research team in the communities. Starting immediately after the intervention, the same research team collected data for one month using the same methods as before the intervention (Table 1). The research team looked for indications of acceptability and feasibility of the intervention recommendations during their interviews and observations. While wandering through the villages, the team had many impromptu conversations which provided them with opportunities to listen to villagers’ rationales of why they were not complying with certain recommended measures.
At the end of each day of data collection, the research team shared experiences among themselves. They discussed the queries they received and the responses given to villagers to assure they maintained uniformity in their responses by only referring to the messages disseminated by the intervention team. The research team built rapport with the villagers to gain their trust; this helped them respond to negative remarks and reactions from the villagers.
In January 2010, five months after the intervention and four months after the research team had moved out of the villages, Rajshahi villagers reported a poultry die-off of an unknown cause. The research team returned to the village and collected data through 45 informal interviews and four observations of handling of sick and dead poultry in the Rajshahi village for a week. They explored information about the poultry illness and whether there was any change in the handling and slaughtering of sick and dead poultry.
The research team completed the field notes and transcribed the recorded data verbatim in Bengali. They performed thematic analysis  of the field notes and transcripts. First, they read the transcriptions and field notes repeatedly to get a sense of the data set. Four members (NAR, KI, MZR and MH) of the research team individually came up with lists of codes (e.g., signs of avian influenza, routes of transmission from poultry to humans, slaughtering sick poultry, disposing poultry carcass) from the data and then discussed together to develop a more comprehensive code list that included all basic segments of the raw data that could be assessed in a meaningful way. They coded all data using Atlas.ti software while modifying the code list further to allow emerging themes. The first author sorted the different codes into potential themes and sub-themes (e.g., change in awareness after intervention, awareness of avian influenza, rationale for ignoring recommended behavior), and combined all the relevant coded data within the identified themes relevant to the study objectives. Then the first and second author reviewed and refined the themes to form a coherent pattern themselves and in relation to the entire data. They looked for similarities and patterns, and took variations and context into consideration for analysis and prepared summaries for each theme. They analyzed the data by selecting vivid compelling examples from the data and relating back to the research objective and literature. They used illustrative quotes that reflected the authenticity of the collected information to highlight particular themes. They triangulated data from interviews and observations.
Among the 466 residents from 114 households in the of the Rajshahi village, 73 % were Muslim and 27 % were Hindu; 27 % had more than primary education. The total population of the Chittagong village was 737 from 138 households, all were Muslim and 34 % had more than primary education. In both villages, most households raised backyard poultry . Their main source of income was crop farming. In June-July 2009, the average number of backyard poultry in poultry raising households was 987 in the Rajshahi village (with an average of nine poultry per household) and 993 in the Chittagong village (with an average of eight poultry per household). Our informants were mostly women, who mainly carried out poultry-related activities and were the major caregivers and decision makers for poultry within that household. Some of our informants were men, who the research team observed slaughtering poultry. Sixty two percent of informants attended school; 37 % were between grade 1 and 5, and 25 % attended grade 6 and above.
Change in awareness
Awareness of avian influenza disease and its route of transmission before and after intervention, Rajshahi and Chittagong villages, Bangladesh, 2009
Topics [Intervention messages]
Interviews before intervention (Na = 42)
Interviews after intervention (N* = 36)
Number of interviews with responses
Number of interviews with responses
Heard/knew about bird flu disease [Bird flu is a poultry disease]
- A disease of broiler/farm poultry, not of backyard poultry
- Many poultry died/killed by government
- Conspiracy of foreign country
- A disease of chickens, not ducks
- A birds’ disease caused from flu/cold
- A foreign disease/did not occur in our village/country
- A disease of poultry/chicken/backyard chicken, which can also infect humans
- A hazardous infectious virus of chickens which can also infect humans
Signs in poultry [Poultry die very quickly in this disease. They get drowsy, and the wattle and comb become blackish blue. Wattle, comb, head and body swells with water. They get blood spots in legs.]
- Sudden death
- Gizzard melts and chickens die in 24 h
- Blue/blackish wattle/comb
- Blood/black spots in leg
- Drowsiness/sit quiet
- Swollen body
- Liquid defecation
- Stop eating
- Secret saliva
Can transmit from poultry to poultry [Bird flu can spread from one poultry to another]
Route of transmission from poultry to poultry [Keeping healthy and sick poultry in the same place; giving food in the same plate; pecking on feces of sick poultry; from saliva, feces, blood, offal, skin, feathers of sick or poultry died of disease]
- Migratory bird
- If kept in same place with sick poultry
- Eating from same pot with sick poultry
- Scavenging in the feces of sick poultry
- Contact with saliva/feces/blood/offal/skin/feathers of sick/dead poultry
- Through breathing or air
Can transmit from poultry to humans [Bird flu can also spread from poultry to human]
Route of transmission from poultry to humans [While carrying poultry to the market for selling; while feeding or giving medicine; while slaughtering; while defeathering; if people put their hands in their nose, mouth or eyes without washing after handling sick poultry or poultry that died from disease. The germ of this disease can go inside the windpipe and lungs with breathing through nose]
- Through consuming bird flu infected poultry/egg
- Children’s touching chicken
- Through breathing or air
- Through consuming sick poultry
- While slaughtering/defeathering sick poultry
- Touching own body or children after touching sick poultry
- Touching feces of sick poultry
Sign-symptoms in humans [People can get fever, cold, coughing, throat ache, and breathing difficulty and may even die if the condition worsens]
- Breathing difficulty
- Damage lungs/kidney/liver
Awareness of avian influenza prevention before and after intervention, Rajshahi and Chittagong villages, Bangladesh, 2009
Topics [Intervention messages]
Interviews before intervention (Na = 42)
Interviews after intervention (Na = 36)
# of interviews with response
# of interviews with response
[Sick poultry should be kept separate and away from healthy poultry or one’s self; sick poultry should not be bought or sold; poultry died from disease should be buried; nose and mouth should be covered well while handling sick and dead poultry and hands should be washed well after handling; sick poultry should not be slaughtered; if one has to slaughter sick poultry, one should: cover nose and mouth very well, stop children from coming near the slaughtering site, cover the blood-smeared slaughtering site with ash or dust and scrape off the soil from that place and bury, wash slaughtering tools well with soap or soda or ash and water; bury offal, skin, feathers, at the end, wash hands with soap or soda or ash and water by rubbing well]
Any prevention response
Any prevention response
- Covering nose and mouth while slaughtering sick poultry/burying carcass
- Not consuming sick poultry/egg
- Burying offal, blood, carcasses
- Cooking/boiling poultry meat/egg well
- Separating sick poultry from healthy poultry and/or humans
- Handwashing with soap
- Not consuming/slaughtering sick poultry
- Burying carcass
- Washing hand after slaughtering or handling sick/dead poultry/eggs
- Not slaughtering/processing poultry
- Keeping children away
- Using mask
- Cleaning slaughtering site
- Not selling sick poultry
- Not touching carcass with bare hand or using polythene to touch carcass for burying
- Cleaning slaughtering tools
- Not letting children to touch chicken and wash their hands with soap after touching
- Using polythene/gloves/piece of cloth to touch carcass/slaughter sick poultry
- Cooking/boiling poultry meat well
Change in preventive practices
Reported preventive practices for handling sick poultry by informants before vs after intervention, Rajshahi and Chittagong villages, Bangladesh, 2009
Reported preventive practices
Separated sick poultry from healthy poultry/humans
Did not sell/buy sick poultry
Buried carcasses or offal/blood of sick poultry
Did not consume/slaughter sick poultry
Cleaned site/tools after slaughtering sick poultry
Washed hand with soap after slaughtering/handling sick/dead poultry
Covered nose/mouth while slaughtering/handling sick/dead poultry
Kept children away
5.30 pm: The woman came to our house and informed (the research team) that a chicken with a tumor in its throat died. I (the observer) went with her to her house and saw that she kept the carcass covered with a bamboo basket in the yard… She informed me that she would dump it in the open field at night after completing her household chores. She indicated that if a wildcat took it away it would not stink. She would not dig a pit to dispose of the chicken because it would take a lot of labor. Her husband was an aged person and her son was not at home. Her daughter refused doing the laborious digging. 8.25 pm: She tore a piece of banana leaf and held the carcass with the leaf because it was repulsive to her and to avoid getting a bad smell on her hand. She took the carcass away from her house and dumped it in an open field for the wildcats. She washed her hand with soap and water after going home because the carcass’s wings had come into contact with her hands, which repulsed her.
During the poultry die-off of an unknown cause in the Rajshahi village in 2010, villagers reported that 59 poultry became sick. Of the 59 sick poultry, 21 (36 %) died, 23 (39 %) were slaughtered, eight (14 %) were sold and seven (12 %) were kept under observation with the expectation that they would recover. Although the villagers reported drowsiness and swollen wattles in their poultry among other signs, they did not relate this die-off with avian influenza because they did not see any change in the color of the poultry’s comb or shank. They considered this a regular die-off typical of those that occurred in winter. The team did not observe villagers practicing the recommended behaviors and the villagers did not report the die-off to the livestock office.
Rationale for ignoring recommended behaviors
Perception of risk and financial concern
“They (the intervention team) told us to bury our poultry only if they get bird flu. But this chicken had a tumor.”
“Why shouldn’t we consume sick poultry, when we have raised them for such a long time? We will consume (poultry). Poison becomes water in fire.”
“They (intervention team) told us to dump the sick poultry. Nobody dumps. Everybody lies that they won’t eat (the sick poultry). They dump if the sick poultry die inside their poultry shed, otherwise they slaughter them. They won’t let you know.”
“If the poultry is mildly sick or the disease has just started, that poultry can be consumed… We are poor.”
Some villagers mentioned that if they keep sick poultry outside their bedroom, a thief or wild animal might take them away. They also mentioned that they would not know if their poultry were about to die if they left them outside, and consequently, would not be able to slaughter them before dying in keeping with their religion . In Islam, eating animals that have died from natural causes is prohibited .
Inconvenience and personal discomfort
“We know all these (recommendations), but we don’t follow them out of laziness. Who will dig the soil? We remain busy at work.”
A raiser said that selling sick poultry was more convenient than following recommendations for safe handling or slaughtering of sick poultry. Some also mentioned that soap was frequently unavailable at washing places.
“It takes a long time to process a chicken. They (intervention team) recommended covering the nose and mouth throughout the slaughtering, defeathering and cutting and washing meat. Won’t I feel suffocated?”
“Be it a gamchha (towel) or orna (women’s scarf), sick poultry will die by the time we find it (to cover nose and mouth). Can anyone cover on time? Aklima’s mother slaughtered one (sick poultry) that day. She did not even have time to bring the slaughtering tool from her room.”
“Why don’t you slaughter? It would have been a good curry. Why aren’t you more careful?”
“We never worked while covering our noses and mouths before. If I do it, and you do it and she does it, then it is not a problem. We three can tell five more people. But it cannot be done alone… If a person, who does not know about the recommendation, sees me doing it, that person will certainly laugh at me.”
“There was a custom of washing hands with soap after touching anything (dirt) in my home. But it is not practiced here (her in-law’s house). If I try to do it, my mother-in-law rebukes me and scornfully says, ‘I brought a soap-user daughter-in-law.”
While the women of the household were cutting meat, a girl came from the neighboring household and asked, “Will you bury the offal?” Then the woman replied, “Why? Is it a sick duck? We would have had to bury if it were a sick duck.”
“I asked (my mother) to cover her nose but mother dumped it (carcass) in the pond without covering her nose… A crow took it away.”
Skepticism about the necessity of the intervention
“Why do you teach the technique of slaughtering (sick poultry) without giving medicine?”
“Talking about these (recommendations) won’t work. Bring medicine.”
“Which doctor should we go to and how should we treat our sick poultry?”
Some informants thought that avian influenza was nothing but a conspiracy or propaganda by foreign countries intended to damage the economy or the poultry industry of Bangladesh. Some of these informants expressed resentment towards the Government of Bangladesh for its role in controlling avian influenza through the culling of flocks.
The villagers’ awareness about avian influenza increased after the intervention, however, the intervention did not result in substantive change in preventive behaviors. Villagers did not consider recommendations, such as isolating, not selling and not consuming sick poultry, burying the offal and carcass, and using soap for handwashing as feasible; while the recommendation to cover their nose and mouth was unacceptable to them. After the intervention, our study participants were aware that the zoonotic transmission of avian influenza was possible through direct contact and through inhalation, which matches with the biomedical perspective about the main transmission pathways of avian influenza infection [38, 39]. Consequently, they were aware that covering their nose and mouth was a preventive measure, which also agrees with the biomedical perspective.
By attempting to describe and interpret the behaviors and beliefs of the communities captured through diverse ethnographic tools, this study provides an understanding of why villagers’ practices did not change after the intervention despite increased awareness. First, financial loss was an important concern for poultry raisers. They sold or consumed sick poultry because these were a source of food and cash in-hand particularly for women [14, 29]. Our observations are consistent with Leppin and Aro (2009) who found that people living under economically precarious conditions may place a relatively low value on health consequences for speculative and distant threats compared to more immediate daily economic hazards .
A second important factor for not adopting avian influenza prevention practices was low perception of risk. Absence of immediate negative consequences, i.e., evidence of transmission of avian influenza or other poultry disease to humans, might cause unaffected communities to have a lower estimate of the risk of avian influenza than communities with outbreaks . Bangladeshi villagers discount the risk of zoonotic transmission of avian influenza . To a community without an outbreak, the risk of a disease like avian influenza was perceived as low. These determinants are important preconditions for backyard raisers’ perception of risk and could affect an individual’s willingness to engage in behaviors intended to reduce their risk . Until villagers believe that avian influenza could affect them, they will not be willing to change their practical approaches that they have been practicing for many years . Compared to avian influenza, small commercial poultry farmers were more concerned about Newcastle disease and infectious bursal disease, which caused mortality in their flock . In Bangladesh, agents contributing to death among chickens are Colibacillosis (28 %), Salmonellosis (14 %) and Newcastle disease (11 %) . However, such infections have little or no impact on human health.
Villagers perceived that cooking eliminated infectiousness, which might have been further strengthened by the government’s recommendation that cooked eggs and meat are safe to consume . This perception undermines the risk of transmission that can occur during the preparation phase. Moreover, villagers did not believe that avian influenza occurred in their flock until they could identify signs of the disease particularly through changes in the color of comb and shank. The problem with identifying avian influenza only through observation, however, is that most signs of avian influenza are similar to those of other commonly occurring poultry diseases, such as Newcastle disease . Therefore, future preventive recommendations could be broadened to include other diseases, such as Newcastle diseases, that the farmers are concerned about, rather than focus only on avian influenza.
A third reason for not adopting prevention recommendations was inconvenience and physical discomfort. Villagers found burying sick poultry carcasses or offal a too laborious recommendation to comply with and preferred either keeping sick poultry close to them or selling them off instead of following safe slaughtering methods. Villagers repeatedly noted that covering their nose and mouth caused the sensation of suffocation. Other studies have reported inconvenience as an important barrier for adoption of other public health interventions, including using insecticide-treated mosquito nets or improved cookstoves [45, 46]. One of the reported reasons bed nets for malaria prevention failed in one area in Mozambique was because people felt hot under the net and chose to sleep outside the net’s cover .
Social pressure or the fear of being rebuked or ridiculed by others in the family or community, also worked as a barrier to adopting certain recommended behaviors. Changing behavior does not involve an individual in isolation but rather is influenced by family, neighborhood or a community collectively. Jenkins and Curtis reported avoidance of shame and embarrassment as an important driver for installing a latrine in rural Benin . A review study that assessed the role of factors influencing adoption of insecticide-treated mosquito nets, household water treatment and improved cookstoves reported that health promotion motives alone are insufficient to drive adoption and sustainable use of prevention measures; non-health factors such as convenience, comfort and sociocultural factors dominate adoption of behavior . Thus, social pressure and norms could be utilized to motivate villagers to adopt new behaviors aimed at preventing avian influenza transmission.
Lastly, villagers perceived treatment and medicine as a more convenient solution rather than complex behavior change. However, there is no treatment available for avian influenza infection in poultry. Although not a treatment, some countries have used avian influenza vaccination as an intervention to reduce the risk of transmission. Some countries have used these vaccines on a long-term basis, some have used it temporarily, while others have not used it at all . The Drug Administration authority of the Government of Bangladesh has allowed three pharmaceuticals to import avian influenza vaccines . At the time of this writing, the Government of Bangladesh is in the process of developing an H5N1 vaccination policy for commercial poultry ; other livestock vaccines have had low uptake in the backyard sector in Bangladesh [52, 53] and so we would not expect widespread uptake of an H5N1 vaccine among backyard poultry producers.
A systematic review of biosecurity measures for backyard poultry in developing countries highlighted the importance of biosecurity for backyard poultry to reduce the spread of HPAI, and reported a lack of biosecurity guidelines, lack of research on the impact of biosecurity measures in backyard settings and a lack of evidence of their feasibility and effectiveness . Educational interventions to improve biosecurity have typically been used to change behaviors among backyard poultry raisers [2–7, 55]. A study in Laos assessed the impact of countrywide intensive educational campaigns on awareness and behavior related to HPAI in 2007 and reported higher rates of cessation of poultry consumption and dead poultry burial but no improvement in poultry raising practices, immunization or reporting mortality to authorities compared to 2006 . The authors discussed the risk of misinterpretation and misconception, since the content and accuracy of the messages reported by the participants differed widely depending on training exposure.
A community-based education trial to improve backyard poultry biosecurity in rural Cambodia highlighted the success of a cascade training approach by involving community members to raise awareness of avian influenza . However, the authors discussed difficulties relating to feasibility of major scale-up of the intervention and maintaining accuracy of the messages disseminated through this method. The study also showed that despite improvement in knowledge and reported practices relating to biosecurity, appropriate practices commonly remained infrequent. Educational interventions to promote standard behaviors in Cambodia and Vietnam also found minimal or no positive change in behavior [2, 6]. In Bangladesh, the government disseminated messages through mass media and workshops or training at livestock offices. These interventions, which were more passive than our interpersonal intervention, either did not evaluate the impact through observations or did not explore reasons for their lack of impact. Our study attempted to modify recommendations to make them more context-appropriate and answer why such educational interventions are unlikely to change behavior, even after increasing awareness.
Our intervention had limitations. Although the intervention team referred to both sick ducks and sick chickens as ‘sick poultry’, our intervention was not designed to include discussion on asymptomatic ducks, which may be reservoirs of avian influenza , and therefore, did not account for risks of HPAI from all poultry. To reduce the risk that the recommended practices would be overwhelming, we sought to change a specific high-risk activity, i.e., slaughtering of sick poultry. Another limitation of the intervention was the short length of time allocated for dissemination and that no reinforcement was provided to promote meaningful behavior change. Nevertheless, this study provides an in-depth understanding of the underlying reasons rural raisers do not comply with such recommendations.
Despite our effort to make the intervention team appear unrelated with the research team, the villagers often correctly assumed that they worked together. This might have caused some courtesy bias, which may have been reflected in some informants’ reporting adopting the preventive methods. However, observed practices did not change after the intervention, so we believe courtesy bias did not undermine our primary conclusion that the intervention did not foster the adoption of recommended avian influenza prevention practices.
We conducted this qualitative study in only two small communities which were unlikely to represent the entire country. Nevertheless, these communities have common socio-economic features with other rural backyard poultry raising areas of Bangladesh [14, 29]. Study populations were not enrolled to be strictly representative of a broader population, so quantitative comparisons should be interpreted with caution.
This study suggests that despite an intense interpersonal intervention which raised awareness about avian influenza and recommended prevention practices, there was little or no change in behavior among backyard poultry raisers. Poultry raisers chose to ignore the recommendations because they were perceived as impractical and unacceptable. Interventions that focus only on health benefits often ignore financial cost, convenience and comfort and consequently are unlikely to succeed. Incorporating non-health benefits to such interventions may increase their adoption. Approaches that minimize personal discomfort and interrupt the transmission route or are marketed as a means of improving return on investment through the raising of healthy poultry should be developed and piloted for efficacy and acceptability in endemic countries. Messages on hand washing and cleaning of slaughtering tools and the slaughtering site could be promoted as routine practices and included in the government’s campaign for general food hygiene and safety.
We are grateful to our study participants for their time and invaluable information. We thank Afroza Khanam Roza for her valuable contribution in data collection and Shamim Azad for his contribution in organizing the data. We also thank Dr. Rashid Zaman and Dr. Salah Uddin Khan for their contribution in developing the research protocol and intervention messages. We thank Diana DiazGranados for her critical review of this manuscript and Dorothy Southern, Astrid Dier and Andrea Mikolon for reviewing and editing the manuscript.
This research was funded by the Centers of Disease Control and Prevention (CDC) (http://www.cdc.gov/) under the Cooperative Agreement Grant 5-U51-CI000298. icddr,b acknowledges with gratitude the commitment of CDC to this research efforts. SPL received the funding. The paper was reviewed and cleared for publication by CDC staff who are not co-authors but the funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of the Centers for Disease Control and Prevention or the institutions with which the authors are affiliated. icddr,b is thankful to the Governments of Australia, Bangladesh, Canada, Sweden and the UK for providing core/unrestricted support.
Availability of data and materials
The dataset supporting the conclusions of this article are included within the article and its additional files.
NAR, RS, EAB, NN, ESG and SPL conceived and designed the study. NAR, RS, MSI, EAB, NN, ESG and SPL developed intervention messages. NAR, KIA, MZR and MH contributed to data collection. NAR, RS, KIA, MZR and SPL contributed to data analysis. NAR lead the writing of the manuscript, SPL guided the writing as the senior author and all authors contributed to writing the manuscript. All authors read and approved the final manuscript.
The authors declare that they have no competing interests.
Consent for publication
Ethics approval consent to participate
icddr,b’s Ethical Review Committee (FWA # 00001468, Human Welfare Assurance # 00001822) reviewed and approved the study protocol. The research team obtained informed written consent in the local language (Bengali) through community meetings from a group of community representatives selected by the villagers in the study villages. The team also obtained verbal informed consent in Bengali from every participating household before initiating data collection and from the participants before interviews and observations. The Centers of Disease Control and Prevention (CDC) institutional review board concluded that the agency was not engaged with human subjects in this project.
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