Cited by 218Pneumonia and Respiratory InfectionsInfluenza Virus Research StudiesBacterial Infections and Vaccines

Influenza Enhances Susceptibility to Natural Acquisition of and Disease due to Streptococcus pneumoniae in Ferrets

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McCullers, Jonathan A., McAuley, Julie L., Browall, Sarah, Iverson, Amy R., Boyd, Kelli L., Henriques Normark, Birgitta·2010·The Journal of Infectious Diseases

Abstract

The role of respiratory viruses in the transmission of Streptococcus pneumoniae is poorly understood. Key questions, such as which serotypes are most fit for transmission and disease and whether influenza virus alters these parameters in a serotype-specific manner, have not been adequately studied. In a novel model of transmission in ferrets, we demonstrated that pneumococcal transmission and disease were enhanced if donors had previously been infected with influenza virus. Bacterial titers in nasal wash, the incidence of mucosal and invasive disease, and the percentage of contacts that were infected all increased. In contact ferrets, viral infection increased their susceptibility to S. pneumoniae acquisition both in terms of the percentage infected and the distance over which they could acquire infection. These influenza-mediated effects on colonization, transmission, and disease were dependent on the pneumococcal strain. Overall, these data argue that the relationship between respiratory viral infections, acquisition of pneumococci, and development of disease in humans needs further study to be better understood.

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  • Children younger than 5 years can be a high-risk group for pneumonia after influenza infection, due to primary viral pneumonia or secondary bacterial pneumonia mainly associated with pneumococci.

    “Children younger than 5 years can be a high-risk group for pneumonia after an influenza infection—either due to primary viral pneumonia or secondary bacterial pneumonia (mainly associated with pneumococci).86, 87”

    From Global burden of childhood pneumonia and diarrhoea (2013) · cites this paper as [87]

  • In experimental in vitro models, viral infections increase the colonization rates of various bacteria in the URT, including S. pneumoniae and H. influenzae.

    “In experimental in vitro models, viral infections increase the colonization rates of various bacteria in the URT (90–95), including S. pneumoniae and H. influenzae (86–88).”
  • Different pneumococcal strains may increase the duration of pneumococcal carriage and enhance the bacterial pneumonia.

    “Different strains may increase the duration of pneumococcal carriage and enhance the bacterial pneumonia.”

    From Bacterial and viral infections associated with influenza (2013) · cites this paper as [10]

  • Transmission studies using animal models show increased incidence and severity of bacterial pneumonia after influenza infection is pneumococcal strain dependent.

    “Transmission studies using animal models show increased incidence and severity of bacterial pneumonia after influenza infection is pneumococcal strain dependent.”

    From Bacterial and viral infections associated with influenza (2013) · cites this paper as [10]

  • The severity of co/secondary infection depends on multiple factors such as the strain of virus and serotype/strain of bacteria, the lag between viral infection and bacterial exposure, and density of bacterial colonization.

    “The severity of co/secondary infection depends on multiple factors such as the strain of virus and serotype/strain of bacteria, the lag between viral infection and bacterial exposure and density of bacterial colonization (Lee L.N. et al., 2010; McCullers et al., 2010; Smith and McCullers, 2014).”

    From Secondary bacterial infections associated with influenza pandemics (2017) · cites this paper as McCullers et al., 2010

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Authors
McCullers, J. A., McAuley, J. L., Browall, S., Iverson, A. R., Boyd, K. L., & Henriques Normark, B.
Affiliations
  • St. Jude Children's Research Hospital (US)
  • Vanderbilt University (US)
Venue
The Journal of Infectious Diseases
Published
2010-10-15
Volume
202
Issue
8
Pages
1287-1295
ISSN
  • 0022-1899 (ISSN-L)
  • 1537-6613
OpenAlex
W2156840385
Cited by
218
References
25
Citations by year
2026: 6 · 2025: 8 · 2024: 8 · 2023: 11 · 2022: 13 · 2021: 13 · 2020: 10 · 2019: 9 · 2018: 15 · 2017: 10 · 2016: 20 · 2015: 15 · 2014: 22 · 2013: 26 · 2012: 17
FWCI
13.50
Type
journal article
Language
en
Open access
Locations
  • The Journal of Infectious Diseases (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Allergy and Infectious Diseases (AI66349, R01AI066349)
Topics
  • Health Sciences › Medicine › Epidemiology › Pneumonia and Respiratory Infections
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
  • Life Sciences › Immunology and Microbiology › Microbiology › Bacterial Infections and Vaccines
Keywords
Streptococcus pneumoniae, influenza virus, pneumococcal transmission, ferret model, respiratory viral infections, bacterial colonization, invasive pneumococcal disease, mucosal disease
MeSH terms
Animals, Disease Models, Animal, Dogs, Ferrets, Mice, Inbred BALB C, Orthomyxoviridae Infections, Influenza A virus, Pneumococcal Infections, Streptococcus pneumoniae, Mice, Kaplan-Meier Estimate, Host-Pathogen Interactions

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