Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus in Poultry, Benin, 2021
Idrissa Nonmon Sanogo, Fidelia Djegui, Yao Akpo, Corneille Gnanvi, Gabriel Dupré, Adam Rubrum, Trushar Jeevan, Pamela McKenzie, Richard J. Webby, and Mariette F. Ducatez
Author affiliations: Université de Ségou, Ségou, Mali (I.N. Sanogo); Institut national de recherche pour l’agriculture, l’alimentation et l’environnement, Ecole Nationale Vétérinaire de Toulouse, Toulouse, France (I.N. Sanogo, G. Dupré, M.F. Ducatez); Laboratoire de Diagnostic vétérinaire et de Sérosurveillance, Parakou, Benin (F. Djegui); Direction de l’Elevage, Cotonou, Benin (Y. Akpo, C. Gnanvi); St. Jude Children’s Research Hospital, Memphis, Tennessee, USA (A. Rubrum, T. Jeevan, P. McKenzie, R.J. Webby)
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Figure 2
Figure 2. Antigenic map of highly pathogenic avian influenza A(H5N1) viruses from Benin based on hemagglutination inhibition data (Appendix Table). Circles indicate viruses and squares antiserum; red indicates viruses characterized in this study, and green dots indicate reference viruses. The spacing between grid lines is 1 unit of antigenic distance, corresponding to a 2-fold dilution of antiserum in the hemagglutination inhibition assay.
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