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Table 2 Sero-prevalence of AIV type A and subtype H5N1 in semi-scavenging domestic ducks during the period from December’2009 to February’2012

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

 

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

 

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

 

Tanguar Haor

150

53

35.33

00

00

 

Dhaka

Jahangirnagar Lake

150

43

28.67

00

00

Total

  

2100

835

39.76

02

0.09

 
  1. A total of 2100 sera samples were tested to determine the antibody of AIV type A and subtype H5N1 by indirect ELISA.