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Influenza virus aerosols in the air and their infectiousness
Nikolai Nikitin1, Ekaterina Petrova1, Ekaterina Trifonova1
1Department of Virology, Lomonosov Moscow State University, 1/12 Leninskie Gory, Moscow 119234, Russia.
Abstract:
Influenza is one of the most contagious and rapidly spreading infectious diseases and an important global cause of hospital admissions and mortality. There are some amounts of the virus in the air constantly. These amounts is generally not enough to cause disease in people, due to infection prevention by healthy immune systems. However, at a higher concentration of the airborne virus, the risk of human infection increases dramatically. Early detection of the threshold virus concentration is essential for prevention of the spread of influenza infection. This review discusses different approaches for measuring the amount of influenza A virus particles in the air and assessing their infectiousness. Here we also discuss the data describing the relationship between the influenza virus subtypes and virus air transmission, and distribution of viral particles in aerosol drops of different sizes.
Insights
Early detection of airborne influenza virus is crucial for preventing outbreaks. This review examines methods for measuring airborne influenza A virus and its infectiousness to control spread.
Area of Science:
- Environmental Science
- Virology
- Public Health
Background:
- Influenza is a highly contagious respiratory illness causing significant global hospitalizations and deaths.
- Airborne influenza virus particles, even at low concentrations, pose an infection risk.
- Increased airborne virus concentration dramatically elevates the risk of human infection.
Purpose of the Study:
- To review methods for quantifying airborne influenza A virus particles.
- To assess the infectiousness of airborne influenza virus.
- To explore the relationship between influenza virus subtypes, airborne transmission, and particle size distribution.
Main Methods:
- Review of existing literature on airborne virus detection techniques.
- Analysis of studies on influenza virus infectiousness in aerosols.
- Examination of data on influenza virus subtype transmission dynamics.
Main Results:
- Various methods exist for detecting and measuring airborne influenza A virus.
- Assessing the infectious potential of airborne virus is critical for risk evaluation.
- Understanding virus concentration, subtype, and aerosol droplet size is key to transmission.
Conclusions:
- Effective prevention of influenza spread relies on early detection of airborne virus levels.
- Further research into airborne virus quantification and infectiousness is needed.
- Knowledge of transmission dynamics aids in developing targeted public health interventions.
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