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Influenza Vaccine

Glycosylation has no impact on immunogenicity of DNA-based influenza vaccine

Published in Medical Letter on the CDC and FDA, June 29th, 2003

The glycosylation pattern has little impact on the immunogenicity of a DNA-based influenza vaccine.

"Avian H5N1 influenza viruses isolated from humans in Hong Kong in 1997 were divided into two antigenic groups based on the presence or absence of a potential glycosylation site at amino acid residues 154-156 in the HA1 region of the viral hemagglutinin (HA) surface glycoprotein. To assess the impact of glycosylation on the immunogenicity of an HA-expressing DNA vaccine, a series of plasmid vaccine constructs that differed in the presence of potential glycosylation sites at amino acid residues 154-156, 165-167, and 286-288 were used to immunize BALB/c mice," scientists in...

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