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Table 2 Antigenic relatedness of the reference strain and field isolates

From: Impact of antigenic and genetic drift on the serologic surveillance of H5N2 avian influenza viruses

HI test antigen Antisera       
  México/1994
(A)
México/2002
(B)
México/2003
(C)
México/2005
(D)
México/2006
(E)
México/2007
(F)
México/2008
(G)
2002 (n = 8 isolates) 135a 987a 287 207 538a 494b 87b
2005 (n = 5 isolates) 70ab 211b 160 279 320a 485b 92b
2006 (n = 6 isolates) 32b 905a 113 254 718a 1810a 285ab
2007 (n = 10 isolates) 37b 1114a 260 171 1040a 1940a 485a
2008 (n = 5 isolates) 80b 160b 160 23 70b 160b 422ab
  1. Antigenic relatedness of the reference strain (A/Ck/México/1994) and low pathogenic Avian Influenza H5N2 viruses isolated between 2002 and 2008 tested by hemagglutination inhibition (HI) test. Official virus ID: A). A/Ck/México/1994; B). A/Ck/México/2002; C). A/Ck/México/2003; D). A/Ck/México/2005; E). A/Ck/México/2006; F). A/Ck/México/2007; G). A/Ck/México/2008. Geometric mean values for HI test using different antisera (A-G) and low pathogenic Avian Influenza H5N2 viruses isolated between 2002 and 2008. Statistical comparisons were made using ANOVA and Fisher's protected least significant difference test. Columns with different superscript are significantly different (P ≤ 0.05).