Table 2 Seroprevalence of type A influenza virus in ducks of Mymensingh and Sylhet divisions during January to July 2013
Month | No. of samples tested | No. of samples positive | % of sample positive |
|---|---|---|---|
Mymensingh division | |||
 January 2013 | 78 | 61 | 78.20% |
 February 2013 | 174 | 105 | 60.34% |
 March 2013 | 134 | 111 | 82.83% |
 April 2013 | 109 | 94 | 86.23% |
 May 2013 | 112 | 60 | 53.57% |
 June 2013 | 170 | 59 | 34.70% |
 July 2013 | 94 | 39 | 41.48% |
 Total | 871 | 529 | 60.73% |
Sylhet division | |||
 June 2013 | 146 | 59 | 40.41% |
 July 2013 | 125 | 50 | 44.00% |
 August 2013 | 391 | 207 | 52.94% |
 Total | 662 | 316 | 47.73% |
Overall | 1533 | 845 | 55.12% |