Poultry movement networks in Cambodia: implications for surveillance and control of highly pathogenic avian influenza (HPAI/H5N1).
Movement of poultry through markets is potentially important in the circulation and spread of highly pathogenic avian influenza. However little is understood about poultry market chains in Cambodia. We conducted a cross-sectional survey of 715 rural villagers, 123 rural, peri-urban and urban market sellers and 139 middlemen from six provinces and Phnom Penh, to evaluate live poultry movement and trading practices. Direct trade links with Thailand and Vietnam were identified via middlemen and market sellers. Most poultry movement occurs via middlemen into Phnom Penh making live bird wet markets in Phnom Penh a potential hub for the spread of H5N1 and ideal for surveillance and control.
Van Kerkhove
Maria D
MD
Epidemiology Unit, Pasteur Institute of Cambodia, Phnom Penh, Cambodia. m.vankerkhove@imperial.ac.uk
Vong
Sirenda
S
Guitian
Javier
J
Holl
Davun
D
Mangtani
Punam
P
San
Sorn
S
Ghani
Azra C
AC
D000328:Adult; D000818:Animals; D002160:Cambodia / Q000453:epidemiology; D003132:Commerce; D016358:Contact Tracing; D003430:Cross-Sectional Studies; D004196:Disease Outbreaks; D005260:Female; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype / Q000472:pathogenicity*; D005585:Influenza in Birds / Q000453:epidemiology* / Q000517:prevention & control* / Q000635:transmission; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance; D011200:Poultry / Q000821:virology*; D012621:Seasons; D055815:Young Adult