| prevalence and incidence of newcastle disease and prevalence of avian influenza infection of scavenging village chickens in timor-lesté. | a longitudinal study to monitor prevalence and incidence of antibodies against newcastle disease (nd) virus and prevalence of antibodies against avian influenza (ai) virus in scavenging village chickens was conducted in 20 villages within 4 districts of timor-lesté. a total of 3600 blood samples was collected from 1674 individual birds in 300 household chicken flocks during three sampling periods (december 2008-february 2009, march-may 2009, and june-august 2009). the mean interval between house ... | 2012 | 22277596 |