Table 1 Search strategies and key words used

("Public Health"[All] OR "World Health"[All] OR “Health” [tiab]) AND ("Influenza A Virus, H1N1 Subtype"[Mesh] OR h1n1[tiab] OR swine flu[tiab] OR swine influenza[tiab]) AND ("communication"[Mesh] OR "Health Knowledge, Attitudes, Practice"[Mesh] OR "Access to Information"[Mesh] OR "Communications Media"[Mesh] OR "Internet"[Mesh] OR "J Health Commun" [Journal] OR "Health Commun"[Journal] OR communication*[tiab] OR media[tiab] OR knowledge[tiab] OR information[tiab] OR awareness[tiab]) NOT “therapeutic use*”[All] NOT “reproductive”[All] NOT “records as topic”[Mesh] NOT “exercise*”[ti] NOT “modeling”[All] NOT “modelling”[All] NOT “tobacco”[All] NOT “ethic*”[tiab] NOT “veterinary medicine”[Mesh] NOT “insurance”[ti] NOT “disorders”[tiab] NOT "contracept*"[tiab] NOT "emergency medicine"[Mesh] NOT clinical*[ti] NOT “dental”[All] NOT “stroke”[All] NOT “law”[title] NOT “legal”[ti] NOT “pharmacist*”[tiab] NOT “pharmaceutical*”[tiab] NOT “HIV”[ti] NOT “surveillance” [ti] NOT "emergency department" [tiab] NOT “AIDS”[ti] NOT “provider*”[ti] NOT “worker*”[ti] NOT "departments"[ti] NOT "personnel"[tiab] NOT "nurses"[tiab] NOT "nursing"[tiab] NOT “nurse*”[tiab] NOT "hospital*" [ti] NOT "sales" [ti]

Filters: Journal Article; Full text available; Publication date from 2009/01/01 to 2012/08/01; Humans; Chinese; Spanish; English; Portuguese; French; Italian

public health'/exp OR 'public health' OR 'public health':ab,ti OR 'world health':ab,ti AND ('h1n1':ab,ti OR 'swine flu':ab,ti OR 'influenza a(h1n1)':ab,ti OR 'swine influenza':ab,ti) AND ('attitude'/exp OR 'access to information'/exp OR 'awareness' OR 'access to information' OR 'risk perception' OR 'perceived risk' OR 'efficacy' OR 'mass communication'/exp OR 'mass communication' OR 'mass medium'/exp OR 'mass medium' OR 'mass media':ab,ti OR communicat*:ab,ti OR 'information':ti OR 'knowledge':ti) NOT ('therapeutic uses':ab,ti OR 'simulation'/exp OR 'hospital'/exp OR 'hospitalization'/exp OR 'laboratory test'/exp OR 'disease registry'/exp OR 'reproductive':ab,ti OR 'records':ti OR 'tobacco':ab,ti OR ethic*:ab,ti OR 'veterinary medicine'/exp OR 'mental disease'/exp OR 'dental':ab,ti OR 'stroke':ab,ti OR 'law':ti OR 'legal':ti OR 'hiv':ti OR 'aids':ab,ti OR 'diabetes':ab,ti OR 'surveillance':ti OR 'randomized trials':ab,ti OR 'asthma':ti OR 'drug':ti OR 'regulations':ti OR pharma*:ti OR zoonosis*:ti OR [medline]/lim) AND ([chinese]/lim OR [english]/lim OR [french]/lim OR [italian]/lim OR [portuguese]/lim OR [spanish]/lim) AND [1-1-2009]/sd NOT [2-8-2012]/sd AND [humans]/lim AND [embase]/lim AND [2009–2012]/py

Filters: Publication date from 2009/01/01 to 2012/08/01; Humans; English; French; Chinese; Italian; Spanish; Portuguese

('((DE "Swine Influenza" OR h1n1 OR "swine flu" OR "swine influenza") AND (DE ("Communication" OR "Communication Theory" OR "Communications Media" OR "Audiovisual Communications Media" OR "Mass Media" OR "Multimedia" OR "Social Media" OR "Telecommunications Media" OR "Information" OR "Health Promotion" OR "Health Knowledge" OR "Knowledge Level") OR communication* OR media OR Knowledge OR information OR awareness))) NOT AB workers NOT AB hospital* NOT clinic*

Limiters - Published Date: 20090101–20120831; Publication Status: fully published; Publication Type: All Journals, Peer Reviewed Journal, Peer-Reviewed Status-Unknown; Language: Chinese, English, French, Italian, Portuguese, Spanish; Document Type: Journal Article; Exclude Dissertations

((DE "Swine Influenza" OR h1n1 OR "swine flu" OR "swine influenza") AND (DE ("Communication" OR "Communication Theory" OR "Communications Media" OR "Audiovisual Communications Media" OR "Mass Media" OR "Multimedia" OR "Social Media" OR "Telecommunications Media" OR "Information" OR "Health Promotion" OR "Health Knowledge" OR "Knowledge Level") OR communication* OR media OR Knowledge OR information OR awareness)) NOT databases NOT clinic

Limiters - Peer Reviewed; Journal or Document: Journal Articles (EJ); Language: (English OR Chinese OR French OR Italian OR Portuguese OR Spanish)

((DE "Swine Influenza" OR h1n1 OR "swine flu" OR "swine influenza") AND (DE ("Communication" OR "Communication Theory" OR "Communications Media" OR "Audiovisual Communications Media" OR "Mass Media" OR "Multimedia" OR "Social Media" OR "Telecommunications Media" OR "Information" OR "Health Promotion" OR "Health Knowledge" OR "Knowledge Level") OR communication* OR media OR Knowledge OR information OR awareness))

Limiters - Scholarly (Peer Reviewed) Journals; Publication Date: 20090101–20120831; Publication Type: Academic Journal, Review; Document Type: Article

((DE "Swine Influenza" OR h1n1 OR "swine flu" OR "swine influenza") AND (DE ("Communication" OR "Communication Theory" OR "Communications Media" OR "Audiovisual Communications Media" OR "Mass Media" OR "Multimedia" OR "Social Media" OR "Telecommunications Media" OR "Information" OR "Health Promotion" OR "Health Knowledge" OR "Knowledge Level") OR communication* OR media OR Knowledge OR information OR awareness))

Limiters - Peer reviewed; Source type: Scholarly Journals Additional limits - Date: From January 01 2009 to August 01 2012;

ab(("Swine Influenza" OR h1n1 OR "swine flu" OR "swine influenza")) AND ab((DE ("Communication" OR "Communication Theory" OR "Communications Media" OR "Audiovisual Communications Media" OR "Mass Media" OR "Multimedia" OR "Social Media" OR "Telecommunications Media" OR "Information" OR "Health Promotion" OR "Health Knowledge" OR "Knowledge Level") OR communication* OR media OR Knowledge OR information OR awareness)) NOT pub((test* OR reporting OR surveillance OR nurses OR nursing))

Date: From January 01 2009 to August 01 2012; Language: All; Source type: Scholarly Journals

TS = (h1n1 OR "swine flu" OR "swine influenza")

AND

TS = ("communication*" OR "media" OR "knowledge" OR "information" OR "awareness")

NOT

TI = (“therapeutic use*” OR “reproductive” OR “records as topic” OR “exercise*” OR “modeling” OR “modelling” OR “tobacco” OR “ethic*” OR “veterinary medicine” OR “insurance” OR “disorders” OR "contracept*" OR "emergency medicine" OR clinical* OR “dental” OR “stroke” OR “law” OR “legal” OR “pharmacist*” OR “pharmaceutical*” OR “HIV” OR “surveillance” OR "emergency department" OR “nurse*” OR “AIDS” OR “provider*” OR “worker*” OR "departments" OR "sales")

NOT

TS = (“reproductive” OR “records as topic” OR “exercise*” OR “modeling” OR “modelling” OR “tobacco” OR “ethic*” OR “veterinary medicine” OR “insurance” OR "contracept*" OR "emergency medicine" OR “dental” OR “stroke” OR “law” OR “legal” OR “pharmacist*” OR “HIV” OR “surveillance” OR "emergency department" OR “AIDS” OR "sales")

Filters:

LANGUAGE: (English OR Chinese OR French OR Italian OR Portuguese OR Spanish) AND

Timespan = 2009-2012

Refined by: DOCUMENT TYPES = (ARTICLE) AND WEB OF SCIENCE CATEGORIES = (INFECTIOUS DISEASES OR EMERGENCY MEDICINE OR SOCIAL SCIENCES BIOMEDICAL OR SOCIAL SCIENCES INTERDISCIPLINARY OR HEALTH CARE SCIENCES SERVICES OR EDUCATION EDUCATIONAL RESEARCH OR NURSING OR PSYCHOLOGY MULTIDISCIPLINARY OR HEALTH POLICY SERVICES OR PSYCHOLOGY SOCIAL OR COMMUNICATION OR SOCIAL ISSUES OR NURSING SCI OR SOCIOLOGY)