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首页> 外文期刊>emerging infectious diseases >Scavenging Ducks and Transmission of Highly Pathogenic Avian Influenza, Java, Indonesia
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Scavenging Ducks and Transmission of Highly Pathogenic Avian Influenza, Java, Indonesia

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摘要

In Java, Indonesia, during March 2007–March 2008, 96 farms with scavenging ducks that were not vaccinated against highly pathogenic avian in. uenza (HPAI) were mon-itored bimonthly. Bird-level (prevalence among individual birds) H5 seroprevalence was 2.6 for ducks and 0.5 for chickens in contact with ducks. At least 1 seropositive bird was detected during 19.5 and 2.0 of duck- and chicken-. ock visits, respectively. Duck . ocks were 12.4× more likely than chicken . ocks to have seropositive birds. During 21.4 of farm visits, ≥1 sampled duck was H5 seropositive when all sampled in-contact chickens were seronegative. Sub-type H5 virus was detected during 2.5 of duck-. ock visits and 1.5 of chicken-. ock visits. When deaths from HPAI infection occurred, H5 virus shedding occurred in apparent-ly healthy birds on 68.8 of farms. Of 180 poultry deaths investigated, 43.9 were attributed to H5 virus. These lon-gitudinal study results indicate that ducks are a source of infection for chickens and, potentially, for humans

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