Samples and isolates obtained from birds in different ecological groups in Jilin Province from 2013 to 2015a

BirdNo. (%) of samples obtained during various seasonsNo. (%) of samples obtained in LBMsTotal no. (%) of samples
Autumn migrationWinteringSpring migration, nesting, and postnesting movements
    Swan goose (Anser cygnoides)1/120/91/2172/238 (0.84)
    Hooded crane (Grus monacha)2/1022/102 (1.96)
    Gaoyou duck (Anas platyrhynchos domestica)2/1322/132 (1.52)
    Big bone chicken (Gallus gallus domestica)4/2834/283 (1.41)
Total1/12 (8.33)0/9 (0)3/319 (0.94)6/415 (1.45)10/755 (1.32)
  • a The results are presented as the number of samples alone or the total number/number of isolated viruses. The percentages given in parentheses represent the percentages of positive samples.