Respiratory bacteria enhance the spread of flu indoors, according to study

Respiratory bacteria enhance the spread of flu indoors, according to study

Geneva — The risk of spreading the flu from one person to another in closed spaces through the aerosols (tiny droplets) that we expel when coughing or sneezing is higher when they come into contact with bacteria present in our respiratory tract, according to a published study. this Wednesday.

The research, organized by the Federal Polytechnic School of Lausanne (EPFL)observed by placing flu-infected droplets on a flat surface that the viral load was 100 times higher and lasted more hours when they were contaminated with bacteria present in human respiratory tracts.

The study, which has been published in the specialized journal “Journal of Virology”, explains that These bacteria function as protectors of the flu virus when it leaves the human body by making the infected droplets “flatter.”.

“This shape accelerates the process of evaporation and crystallization of salt in the droplet, which allows viruses to live longer in dry environments, such as indoor spaces in winter when the heating is on,” said Shannon David, EPFL researcher. and responsible for the study.

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