Reproducibility of Serologic Assays for Influenza Virus A (H5N1)
Iain Stephenson , Alan Heath, Diane Major, Robert W. Newman, Katja Hoschler, Wang Junzi, Jacqueline M. Katz, Jerry P. Weir, Maria C. Zambon, and John M. Wood
Author affiliations: University of Leicester, Leicester, UK (I. Stephenson); National Institute for Biological Standards and Controls, Potters Bar, UK (A. Heath, D. Major, R.W. Newman, J.M. Wood); Health Protection Agency, Colindale, UK (K. Hoschler, M.C. Zambon); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (J.M. Katz); Food and Drug Administration, Rockville, Maryland, USA (J.P. Weir); National Institute for the Control of Pharmaceutical and Biological Products, Beijing, People’s Republic of China (W. Junzhi)
Figure 2. Range of hemagglutination-inhibition (HI) and neutralization titers to clade 1 homologous NIBRG-14 virus in postvaccination serum sample F: the number of laboratories reporting specific titer dilution of absolute titers and titers relative to 07/150. A) Absolute horse HI titers, B) absolute neutralization titers, C) titers relative to 07/150 horse HI titers, D) titers relative to 07/150 neutralization titers.
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