Abstract
A mouse model was used to determine if protective immunity to influenza A virus infection differs between the sexes. The median lethal dose of H1N1 or H3N2 was lower for naïve females than males. After a sublethal, primary infection with H1N1 or H3N2, females and males showed a similar transient morbidity, but females generated more neutralizing and total anti-influenza A virus antibodies. Immunized males and females showed similar protection against secondary challenge with a homologous virus, but males experienced greater morbidity and had higher lung viral titers after infection with a lethal dose of heterologous virus. Females develop stronger humoral immune responses and greater cross protection against heterosubtypic virus challenge.
Original language | English (US) |
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Pages (from-to) | 9246-9255 |
Number of pages | 10 |
Journal | Vaccine |
Volume | 29 |
Issue number | 49 |
DOIs | |
State | Published - Nov 15 2011 |
Keywords
- Humoral immunity
- Influenza vaccine
- Sex difference
ASJC Scopus subject areas
- Molecular Medicine
- Immunology and Microbiology(all)
- veterinary(all)
- Public Health, Environmental and Occupational Health
- Infectious Diseases