Journal
JOURNAL OF VIROLOGY
Volume 84, Issue 8, Pages 4105-4108Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/JVI.02621-09
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Funding
- American Lebanese Syrian Associated Charities (ALSAC)
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Secondary bacterial infections contribute to morbidity and mortality from influenza. Vaccine effectiveness is typically assessed using prevention of influenza, not secondary infections, as an endpoint. We vaccinated mice with formalin-inactivated influenza virus vaccine preparations containing disparate HA and NA proteins and demonstrated an ability to induce the appropriate anti-HA and anti-NA immune profiles. Protection from both primary viral and secondary bacterial infection was demonstrated with vaccine-induced immunity directed toward either the HA or the NA. This finding suggests that immunity toward the NA component of the virion is desirable and should be considered in generation of influenza vaccines.
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