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Table 2 Antigenic characterisation of A/turkey/Egypt/AR1507/2016(H5N1) (TK16) isolated from vaccinated turkeys in this study

From: Isolation and genetic characterization of a novel 2.2.1.2a H5N1 virus from a vaccinated meat-turkeys flock in Egypt

Serum samples against:

Clade

HI titer (log2) against

HA identity*

TK16

Homologous antigen

A/chicken/Egypt/AR234-FAOF8NLQP/2014 (H5N1)

2.2.1.2

7

9

99.4/100

A/chicken/Egypt/0879-NLQP/2008 (H5N1)

2.2.1.1

5

10

94.7/94.2

A/teal/Germany/WV632/2005 (H5N1)

2.2

6

9

88.7/90.6

A/turkey/Germany-MV/R2472/2014 (H5N8)

2.3.4.4

2

7

88.7/90.6

A/Vietnam/1194/2004 (H5N1)

1

6

8

93.2/95.1

  1. HA identity ratio was calculated for nucleotides and deduced amino acids after alignment of the gene sequence and deduced amino acids using Bio Edit by the equation
  2. 100 - (Length of gene segment - Number of mutations/Length of gene segment)