Recombinant adenovirus encoding the HA gene from swine H3N2 influenza virus partially protects mice from challenge with heterologous virus: A/HK/1/68 (H3N2)

Recombinant adenovirus encoding the HA gene from swine H3N2 influenza virus partially protects... Immunization with recombinant adenoviral vaccine that induces potent immunity has been applied to many infectious diseases. We report here developing a recombinant adenoviral vaccine encoding the HA gene from swine H3N2 influenza virus (SIV). Two replication-defective recombinant adenoviruses were generated: (1) rAd-HA: recombinant adenovirus encoding the HA gene from swine H3N2 influenza virus, and (2) rAd-vector: a control recombinant adenovirus containing adenovirus and transfer plasmids without a foreign HA gene. Mice given rAd-HA developed high titers of neutralizing and hemagglutination inhibition antibodies to SIV in comparison to mice inoculated with rAd-vector or PBS as early as 2 weeks after immunization, and these antibodies were substantially increased in the mice given rAd-HA within the next 3 weeks following the first dose. However, these antibodies were not able to neutralize the virus, A/HK/68 (H3N2), used for challenge. Nonetheless mice immunized with one or two doses of rAd-HA were protected from lethal challenge with heterologous virus, A/HK/1/68 (H3N2). A statistically significant ( P < 0.03) difference between survival rates of rAd-HA mice vs. rAd-vector or PBS mice was observed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Recombinant adenovirus encoding the HA gene from swine H3N2 influenza virus partially protects mice from challenge with heterologous virus: A/HK/1/68 (H3N2)

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Publisher
Springer-Verlag
Copyright
Copyright © 2002 by Springer-Verlag/Wien
Subject
Legacy
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-002-0870-y
Publisher site
See Article on Publisher Site

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