| Literature DB >> 19932673 |
Jane Baer1, Felix Santiago, Hongmei Yang, Hulin Wu, Jeanne Holden-Wiltse, John Treanor, David J Topham.
Abstract
B cell responses after immunization with a drifted H5 influenza/A/Vietnam/1203/04 vaccine were characterized in the peripheral blood of human subjects primed with experimental recombinant H5 influenza A/Hong Kong/156/97 vaccine. Antibody secreting cells were assayed by ELISPOT against a panel of recombinant hemagglutinin and control proteins. Increased frequencies of H5 HA-specific antibody secreting and memory B cells could be observed within 7 days of re-vaccination. Furthermore, these responses were cross-reactive to both H5 HA variants, but not H3 or avian H6 HA strains. These observations suggest prior vaccination against H5 influenza HA induces cellular immune responses that cross-react among drifted variants, without precluding a response to new, or existing HA strains.Entities:
Mesh:
Substances:
Year: 2009 PMID: 19932673 PMCID: PMC2814950 DOI: 10.1016/j.vaccine.2009.11.002
Source DB: PubMed Journal: Vaccine ISSN: 0264-410X Impact factor: 3.641