Among the diseases that are transmitted through the air in addition to Covid-19, measles, smallpox and tuberculosis.
And experts from the US Centers for Disease Control and Prevention consider that the main mode of transmission remains Spray drops Respiratory tract of various sizes that the infected person scatters when sneezing, coughing, singing, speaking and breathing.
But the update that comes ten months after the start of the pandemic confirms the validity of studies that show that the Corona virus, although it is the least contagious of measles, can be transmitted more than two meters, a hypothesis that was excluded by the American Centers for Disease Control and Prevention and the World Health Organization when the SARS virus appeared – COF-2.
The centers stress the importance of indoor ventilation to avoid infection, and on the other hand, they do not consider the transmission of infection “through surfaces contaminated with the virus, a common method for the spread of Covid-19.”
As for the recommendations of this body, there has been no amendment to the precautions that must be taken: physical distancing, setting GagsWashing hands, avoiding crowded indoor places, and isolating sick people.
A group of American scientists was pushing to update the official health recommendations, which were based on an outdated distinction between droplets and aerosols dating back to the 1930s.
On Monday, experts at the universities of California, Maryland, Virginia Tech and others wrote in a joint letter that “viruses in aerosols can float in the air for seconds and hours, like smoke, and can be inhaled.”