Volume 18, Number 6—June 2012
Avian Influenza A (H5N1) Virus Antibodies in Poultry Cullers, South Korea, 2003–2004
|Participant no.†||Age, y||Occupation||Serologic results‡
|Neutralizing antibody titer||Horse HI titer||Western blot§|
*All 9 persons were male, worked as cullers, and had no signs or symptoms of respiratory illness. HI, hemagglutination inhibition assay; +, positive; −, negative; ±, equivocal.
†Cases 1–5 were confirmed at the Korea Centers for Disease Control and Prevention with paired samples and 6–9 were confirmed at the US Centers for Disease Control and Prevention with a single sample.
‡Results for participants 1–5 were obtained from 2 samples and for 6–9 from 1 sample.
§Western blot analyses were performed by using purified baculovirus-expressed influenza A/Vietnam/1203/2004 virus hemagglutinin as antigen.