It turns out that the flu does not need coughing or sneezing for transmission. According to a new study, it was discovered that the flu virus, commonly known as the flu, can be transmitted through breathing, against all notions of contamination from exposure to droplets of coughs and sneezes.
A study conducted by the University of Maryland published some new pieces of evidence for transmission over the air. The study "Infectious virus in the exhaled breath of symptomatic cases of seasonal influenza of a university community" indicated the large quantities of infectious virus researchers found in the breath exhaled by people suffering from the flu. How to know if you are suffering from swine flu or seasonal flu?
Dr. Milton, MD, MPH, professor of environmental health at the University of Maryland School of Public Health and principal investigator of this study said: "We discovered that influenza cases contaminated the air that surrounded them with the infectious virus simply by breathing, without coughing or sneezing.
He added: "People with the flu generate infectious aerosols (small drops that remain suspended in the air for a long time) even when they are not coughing, and especially during the first days of the illness. Then, when someone gets the flu, they should go home and not stay in the workplace and infect others. "
Researchers from San Jose State University, the University of Maryland, the University of California – Berkeley and Western State University of Missouri contributed to this study, which was funded by the Centers for Disease Control and Prevention (CDC) and the National Institutes of Health, and the team captured and studied the influenza virus on the exhaled breath of 142 confirmed cases of people with influenza during natural respiration, provoked speech, spontaneous coughing and sneezing, and evaluated the infectivity of naturally occurring influenza aerosols Read to know if repeated vaccination can help reduce the incidence of influenza. flu.
Participants provided 218 samples of 30 minutes of exhaled breath, spontaneous cough and sneezing, and 218 nasopharyngeal swabs the first, second and third day after the onset of symptoms. The analysis of the infectious virus showed that a significant number of patients with influenza routinely shed infectious viruses, not simply detectable RNA, into aerosol particles small enough to present a risk of airborne transmission.
& # 39; The study findings suggest that surfaces are kept clean, hands washed at all times, and avoiding coughing does not provide complete protection against the flu, "said Sheryl Ehrman, Don Beall Dean from the Charles W. Davidson School of Engineering at San Jose State University, adding that "staying home and leaving public spaces could make a difference in the spread of the influenza virus."
According to the authors, the findings could be used to improve the mathematical models of the risk of airborne influenza transmission of people with symptomatic disease.The findings can also help develop more effective public health interventions and control and reduce the impact of influenza epidemics and pandemics, they also noted that improvements could be made to ventilation systems to reduce the risk of transmission in public places such as offices, school classrooms and subway cars. The study suggested getting vaccinated, although it is not perfect, but it prevents a significant amount of serious illness.
The study is published in Proceedings of the National Academy of Sciences.
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Published: January 21, 2018 3:30 p.m. | Updated: January 21, 2018 at 3:31 p.m.