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. 2012 Aug 27;7(8):e43974. doi: 10.1371/journal.pone.0043974

Table 1. AIV infection rates in hand-reared ducks.

Year GBF Number of samples Duckling age (weeks) Days before release AIV prevalence (%)
2009 GBF1 222 6 21 99
2010 GBF1 99 6 2 8
GBF2 100 7 0 0
GBF3 100 12.5 0 24
GBF4 100 8 0 0