Key result
In a survey of 197 serum samples from Korean chicken flocks, 73.1% were positive for avian metapneumovirus antibodies, with higher incidence in broilers (97.3%) than layers (67.5%).
Cross-Sectional (n=197)
A high prevalence of avian metapneumovirus antibodies was found in Korean chicken flocks, particularly in older birds and broilers.
Answers are grounded in this paper and cite their sources.
High seroprevalence signals endemic exposure; leaves open clinical impact and control needs in Korean flocks.
Laboratory tests to identify the viral genome, the antigen, or specific antibodies are used for a definitive diagnosis of avian metapneumovirus (AMPV) infection. Methods that can be used for antibody determination are the virus neutralization test and the enzyme-linked immunosorbent assay. To monitor the presence of AMPV in Korean chickens, sera were taken from chickens in 20 flocks. Of the 197 serum samples tested by enzyme-linked immunosorbent assay, 144 (73.1%) were positive for AMPV. The incidence of AMPV antibodies was higher in broilers (97.3%; 36 of 37 chickens) than in layers (67.5%; 108 of 160 chickens). Age was a factor, with very few positive samples obtained from young birds and the highest positive rates obtained for birds more than 100 d old.
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Park et al. (2011) conducted a cross-sectional in Avian metapneumovirus (AMPV) infection (n=197). Avian metapneumovirus (AMPV) exposure was evaluated on Presence of AMPV antibodies. In a survey of 197 serum samples from Korean chicken flocks, 73.1% were positive for avian metapneumovirus antibodies, with higher incidence in broilers (97.3%) than layers (67.5%).
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