World Tourism Organization (UNWTO). UNWTO Tourism Highlights. 2011, Edition [Available at http://mkt.unwto.org/sites/all/files/docpdf/unwtohighlights11enhr_1.pdf [Accessed 18/10/2011]
Lopez-Velez R, Bayas JM: Spanish travelers to high-risk areas in the Tropics: Airport survey of travel health knowledge, attitudes, and practices in vaccination and malaria prevention. JTravelMed. 2007, 14 (5): 297-305.
Piyaphanee W, Wattanagoon Y, Silachamroon U, Mansanguan C, Wichianprasat P, Walker E: Knowledge, attitudes, and practices among foreign backpackers toward malaria risk in southeast Asia. JTravelMed. 2009, 16 (2): 101-106.
Provost S, Soto JC: Perception and knowledge about some infectious diseases among travelers from Quebec, Canada. JTravelMed. 2002, 9 (4): 184-189.
Ropers G, van Beest Holle MR, Wichmann O, Kappelmayer L, Stuben U, Schonfeld C, Stark K: Determinants of malaria prophylaxis among German travelers to Kenya, Senegal, and Thailand. JTravelMed. 2008, 15 (3): 162-171.
Hamer DH, Connor BA: Travel health knowledge, attitudes and practices among United States travelers. JTravelMed. 2004, 11 (1): 23-26.
Toovey S, Jamieson A, Holloway M: Travelers' knowledge, attitudes and practices on the prevention of infectious diseases: results from a study at Johannesburg International Airport. JTravelMed. 2004, 11 (1): 16-22.
Van Herck K, Van Damme P, Castelli F, Zuckerman J, Nothdurft H, Dahlgren AL, Gisler S, Steffen R, Gargalianos P, Lopez-Velez R, et al: Knowledge, attitudes and practices in travel-related infectious diseases: the European airport survey. JTravelMed. 2004, 11 (1): 3-8.
Van Herck K, Zuckerman J, Castelli F, Van Damme P, Walker E, Steffen R, Board ETHA: Travelers' knowledge, attitudes, and practices on prevention of infectious diseases: results from a pilot study. JTravelMed. 2003, 10 (2): 75-78.
Wilder-Smith A, Khairullah NS, Song JH, Chen CY, Torresi J: Travel health knowledge, attitudes and practices among Australasian travelers. JTravelMed. 2004, 11 (1): 9-15.
United Nations (UN). World macro regions and components ST/ESA/STAT/SER.R/29. [Available at http://www.un.org/depts/dhl/maplib/worldregions.htm [Accessed 20/04/2007]]
Heywood AE, Watkins RE, Pattanasin S, Iamsirithaworn S, Nilvarangkul K, MacIntyre CR: Self-reported symptoms of infection among travelers departing from Sydney and Bangkok airports. JTravelMed. 2010, 17 (4): 243-249.
Australian Federal Bureau of Infrastructure Transport and Regional Economics (BITRE). International Airline Activity Time Series. [Available at: [Accessed 24/03/2007]http://www.bitre.gov.au]
Hosmer DW, Lemeshow S: Model-building strategies and methods for logistic regression. Applied logistic regression. Edited by: Hoboken . 2000, John Wiley & Sons, New York, 2
Peduzzi P, Concato J, Kemper E, Holford TR, Feinstein AR: A simulation study of the number of events per variable in logistic regression analysis. JClinEpidemiol. 1996, 49 (12): 1373-1379.
Packham CJ: A survey of notified travel-associated infections: implications for travel health advice. Journal of Public Health Medicine. 1995, 17 (2): 217-222.
Laver SM, Wetzels J, Behrens RH: Knowledge of malaria, risk perception, and compliance with prophylaxis and personal and environmental preventive measures in travelers exiting Zimbabwe from Harare and Victoria Falls International airport. JTravelMed. 2001, 8 (6): 298-303.
Lobel HO, Baker MA, Gras FA, Stennies GM, Meerburg P, Hiemstra E, Parise M, Odero M, Waiyaki P: Use of malaria prevention measures by North American and European travelers to East Africa. JTravelMed. 2001, 8 (4): 167-172.
Cabada MM, Maldonado F, Quispe W, Serrano E, Mozo K, Gonzales E, Seas C, Verdonck K, Echevarria JI, Gotuzzo E: Pretravel health advice among international travelers visiting Cuzco, Peru. JTravelMed. 2005, 12 (2): 61-65.
LaRocque RC, Rao SR, Tsibris A, Lawton T, Barry MA, Marano N, Brunette G, Yanni E, Ryan ET: Pre-travel health advice-seeking behavior among US international travelers departing from Boston Logan International Airport. J Travel Med. 2010, 17 (6): 387-391. 10.1111/j.1708-8305.2010.00457.x.
Kelly-Hope LA, Purdie DM, Kay BH: Risk of mosquito-borne epidemic polyarthritis disease among international visitors to Queensland, Australia. JTravelMed. 2002, 9 (4): 211-213.
Wilder-Smith A, Boudville I, Earnest A, Heng SL, Bock HL: Knowledge, attitude, and practices with regard to adult pertussis vaccine booster in travelers. JTravelMed. 2007, 14 (3): 145-150.
Zwar N, Streeton CL: Pretravel advice and hepatitis A immunization among Australian travelers. JTravelMed. 2007, 14 (1): 31-36.
Leggat PA, Zwar NA, Hudson BJ: Hepatitis B risks and immunisation coverage amongst Australians travelling to Southeast Asia and East Asia. TravelMedInfectDis. 2009, 7 (6): 344-349.
National Health and Medical Research Council: Vaccination for international travel. The Australian Immunisation Handbook. 9th edition. 2008, Australian Government Department of Health and Ageing, Canberra
Yoo YJ, Bae GO, Choi JH, Shin HC, Ga H, Shin SR, Kim MS, Joo KJ, Park CH, Yoon HJ, et al: Korean travelers' knowledge, attitudes and practices regarding the prevention of malaria: Measures taken by travelers departing for India from Incheon International Airport. JTravelMed. 2007, 14 (6): 381-385.
Freedman DO, Weld LH, Kozarsky PE, Fisk T, Robins R, von Sonnenburg F, Keystone JS, Pandey P, Cetron MS, Network GS: Spectrum of disease and relation to place of exposure among ill returned travelers. NEnglJ Med. 2006, 354 (2): 119-130. 10.1056/NEJMoa051331.
World Tourism Organization (UNWTO). UNWTO Tourism highlights. 2008, [Available at: www.unwto.org [Accessed 11/12/2008]]
Angell SY, Cetron MS: Health disparities among travelers visiting friends and relatives abroad. AnnInternMed. 2005, 142 (1): 67-72.
Baggett HC, Graham S, Kozarsky PE, Gallagher N, Blumensaadt S, Bateman J, Edelson PJ, Arguin PM, Steele S, Russell M, et al: Pretravel health preparation among US residents traveling to India to VFRs: importance of ethnicity in defining VFRs. JTravelMed. 2009, 16 (2): 112-118.
Johnson JY, McMullen LM, Hasselback P, Louie M, Saunders LD: Travelers' knowledge of prevention and treatment of travelers' diarrhea. JTravelMed. 2006, 13 (6): 351-355.
Dahlgren AL, Deroo L, Steffen R: Prevention of travel-related infectious diseases: Knowledge, practices and attitudes of Swedish travellers. ScandJInfectDis. 2006, 38 (11): 1074-1080.
Schunk M, Wachinger W, Nothdurft HD: Vaccination status and prophylactic measures of travelers from Germany to subtropical and tropical areas: results of an airport survey. JTravelMed. 2001, 8 (5): 260-262.
Pfeil A, Mutsch M, Hatz C, Szucs TD: A cross-sectional survey to evaluate knowledge, attitudes and practices (KAP) regarding seasonal influenza vaccination among European travellers to resource-limited destinations. BMC Public Health. 2010, 10: 402-10.1186/1471-2458-10-402.
Zuckerman JN, Hoet B: Hepatitis B immunisation in travellers: poor risk perception and inadequate protection. TravelMedInfectDis. 2008, 6 (5): 315-320.
Hartjes LB, Baumann LC, Henriques JB: Travel health risk perceptions and prevention behaviors of US study abroad students. J Travel Med. 2009, 16 (5): 338-343. 10.1111/j.1708-8305.2009.00322.x.
De Juanes JR, Gil A, San-Martin M, Gonzalez A, Esteban J, de Garcia CA: Seroprevalence of varicella antibodies in healthcare workers and health sciences students. Reliability of self-reported history of varicella. Vaccine. 2005, 23 (12): 1434-1436. 10.1016/j.vaccine.2004.10.003.
Skull SA, Andrews RM, Byrnes GB, Kelly HA, Nolan TM, Brown GV, Campbell DA: Validity of self-reported influenza and pneumococcal vaccination status among a cohort of hospitalized elderly inpatients. Vaccine. 2007, 25 (25): 4775-4783. 10.1016/j.vaccine.2007.04.015.
Trevisan A, Frasson C, Morandin M, Beggio M, Bruno A, Davanzo E, Di ML, Simioni L, Amato G: Immunity against infectious diseases: predictive value of self-reported history of vaccination and disease. InfectControl HospEpidemiol. 2007, 28 (5): 564-569.