Article

A live attenuated severe acute respiratory syndrome coronavirus is immunogenic and efficacious in golden Syrian hamsters.

Laboratory of Infectious Diseases, NIAID, NIH, Bethesda, MD 20892, USA.
Journal of Virology (Impact Factor: 4.65). 09/2008; 82(15):7721-4. DOI: 10.1128/JVI.00304-08
Source: PubMed

ABSTRACT The immunogenicity and protective efficacy of a live attenuated vaccine consisting of a recombinant severe acute respiratory syndrome (SARS) coronavirus lacking the E gene (rSARS-CoV-DeltaE) were studied using hamsters. Hamsters immunized with rSARS-CoV-DeltaE developed high serum-neutralizing antibody titers and were protected from replication of homologous (SARS-CoV Urbani) and heterologous (GD03) SARS-CoV in the upper and lower respiratory tract. rSARS-CoV-DeltaE-immunized hamsters remained active following wild-type virus challenge, while mock-immunized hamsters displayed decreased activity. Despite being attenuated in replication in the respiratory tract, rSARS-CoV-DeltaE is an immunogenic and efficacious vaccine in hamsters.

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