Additional file 1 of Avian influenza virus circulation and immunity in a wild urban duck population prior to and during a highly pathogenic H5N1 outbreak

Additional file 1. Detailed records for samples from ducks that were used in this study. Samples from the 2011–2012 period were no longer available, therefore the previously published data [38] were used and are presented as only anti-NP antibody-positive or -negative.附加文件1：本研究中所用鸭源样本的详细记录。2011–2012年的样本已无法获取，因此采用了已发表的文献[38]中的数据，且仅以抗NP抗体（anti-NP antibody）阳性或阴性的形式进行展示。