By Bond Robertson 
Corona virus loses 90% of its ability to infect after being exposed to air for 20 minutes. He writes that the greatest weakness occurs during the first five minutes Watchman.
This appeared in the world’s first simulation of how the virus remains in the air after exhalation.
The simulation suggests that using a mask and maintaining a distance is the most effective measure to avoid injury.
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According to study author and director of the University of Bristol, Jonathan Reed, good ventilation in rooms greatly helps prevent the spread of infection. This applies if the affected person is not staying in the same room.
– Many focused on poorly ventilated places and how infection can spread several meters across a room. I’m not saying this can’t happen, but the biggest risk is still if you’re close to someone else, says Reed.
Using another method, US researchers have concluded that the infection can remain in the airspace for up to three hours, according to the New England Journal of Medicine.