Speaking without masks in confined spaces raises the greatest risk of spreading SARS-COV-2, the virus that causes Covid-19, to others, according to a study.
The study published in the Diary of Internal Medicine describes how respiratory drops of different sizes are emitted, while talks a continuous sizes and can transport different amounts of viruses.
Most applicants are droplets of intermediate size that remain suspended in the air during the minutes and can be transported on considerable distances by convective air currents.
“We’ve all seen some droplets of spit flying when people talk, but there are thousands more, too small to be seen at first sight,” said Adriaan Bax, from the National Institute of Diabetes and Digestive Diseases and US Kidney. UU Maryland.
“When the water evaporates from said drops generated by speech, potentially rich in viruses, float in the air by minutes, such as smoke, which puts others at risk,” Bax added.
Since the beginning of the Covid-19 pandemic last year, researchers have argued that Covid-19 was not in the air. However, the US centers UU for control and prevention of diseases (CDC), in May, announced that exposure to respiratory fluids, very fine respiratory droplets and aerosol particles, present in the air and that wearing virus They are the main reason for hiring COVID-19 infection.
The Indian government also in a warning stated that spray and droplets are key modes of virus transmission. He added that the spray can travel up to ten meters of the infected person and that the spray through the infected person can fall within two meters, but it can be carried ten meters through the air.
The advisor said, to prevent people from it to continue using masks, use double masks or a N95 mask. The introduction of cross ventilation and exhaust fanatics will be beneficial to reduce the spread of the disease, he said.
