Decreased risk of non-influenza respiratory infection after influenza B virus infection in children.
Epidemiol Infect
; 152: e60, 2024 Apr 08.
Article
em En
| MEDLINE
| ID: mdl-38584132
ABSTRACT
Previous studies suggest that influenza virus infection may provide temporary non-specific immunity and hence lower the risk of non-influenza respiratory virus infection. In a randomized controlled trial of influenza vaccination, 1 330 children were followed-up in 2009-2011. Respiratory swabs were collected when they reported acute respiratory illness and tested against influenza and other respiratory viruses. We used Poisson regression to compare the incidence of non-influenza respiratory virus infection before and after influenza virus infection. Based on 52 children with influenza B virus infection, the incidence rate ratio (IRR) of non-influenza respiratory virus infection after influenza virus infection was 0.47 (95% confidence interval 0.27-0.82) compared with before infection. Simulation suggested that this IRR was 0.87 if the temporary protection did not exist. We identified a decreased risk of non-influenza respiratory virus infection after influenza B virus infection in children. Further investigation is needed to determine if this decreased risk could be attributed to temporary non-specific immunity acquired from influenza virus infection.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Orthomyxoviridae
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Infecções Respiratórias
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Vacinas contra Influenza
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Infecções por Herpesviridae
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Infecções por Orthomyxoviridae
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Influenza Humana
Limite:
Child
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Humans
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article