From: Surveillance of avian influenza virus type A in semi-scavenging ducks in Bangladesh
Winter season | Division | Wintering sites | Total no. of sample tested by iELISA | AIV type A positive sample | Sero-prevalence (%) of AIV type A | AIV H5N1 positive sample | Sero-prevalence (%) of AIV H5N1 | Seasonal sero-prevalence (%) of AIV type A |
---|---|---|---|---|---|---|---|---|
 | Sylhet | Hakaluki Haor | 450 | 213 | 47.33 | 01 | 0.22 | 43.89 |
Dec. 2009 to Feb. 2010 | Â | Tanguar Haor | 225 | 95 | 42.22 | 01 | 0.44 | |
 | Dhaka | Jahangirnagar Lake | 225 | 87 | 38.67 | 00 | 00 | |
 | Sylhet | Hakaluki Haor | 300 | 121 | 40.33 | 00 | 00 | 38.50 |
Dec. 2010 to Feb. 2011 | Â | Tanguar Haor | 150 | 58 | 38.67 | 00 | 00 | |
 | Dhaka | Jahangirnagar Lake | 150 | 52 | 34.67 | 00 | 00 | |
 | Sylhet | Hakaluki Haor | 300 | 113 | 37.67 | 00 | 00 | 34.83 |
Dec. 2011 to Feb. 2012 | Â | Tanguar Haor | 150 | 53 | 35.33 | 00 | 00 | |
 | Dhaka | Jahangirnagar Lake | 150 | 43 | 28.67 | 00 | 00 | |
Total | Â | Â | 2100 | 835 | 39.76 | 02 | 0.09 | Â |