Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
17
pubmed:dateCreated
2008-4-11
pubmed:abstractText
Influenza epidemics or pandemics can arise for which strain- or subtype-matched vaccines are unavailable. Heterosubtypic immunity (Het-I) targeting conserved influenza A antigens could reduce morbidity and mortality during preparation of matched vaccines. Various vaccines inducing Het-I in animals have been studied separately using different viruses and conditions, but effectiveness for inducing Het-I has not been directly compared. The present studies compared immunization with cold-adapted (ca) viruses to DNA prime-recombinant adenovirus (rAd) boost vaccination to conserved antigens nucleoprotein (NP), matrix-2 (M2), or A/NP+M2. Both ca and DNA-rAd vaccinations induced antibody and T cell responses, and protected against lethal H1N1 challenge. Only A/NP+M2 DNA-rAd protected against challenge with highly pathogenic A/Vietnam/1203/2004 (H5N1); ca vaccine did not. Existing ca vaccines may provide some Het-I, but experimental vaccination focusing on conserved antigens was more effective in this model for protection against a divergent, highly pathogenic virus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0264-410X
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2062-72
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Comparison of vaccines for induction of heterosubtypic immunity to influenza A virus: cold-adapted vaccine versus DNA prime-adenovirus boost strategies.
pubmed:affiliation
Center for Biologics Evaluation and Research, Food and Drug Administration , Rockville, MD 20852-1448, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.