Abstract
A disease called "hydrosalpinx fluid and egg drop syndrome" (HFEDS) was observed in four flocks of Jinding ducks (Anas platyrhynchos domesticus) in Northeast China during the years 2022 to 2023. Here, we investigated the possible involvement of avian metapneumovirus (AMPV) infection. Full-length genome sequencing and sequence analysis of two AMPV strains showed that they belong to Eurasian lineage of AMPV subtype C. Based on surface glycoprotein (G) sequence comparisons, the Eurasian lineage can be divided into two sublineages (E1 and E2), and sublineage E2 is circulating in Jinding duck populations in Northeast China.
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