Researchers in the United States have discovered factors that accelerate the destruction of COVID-19. According to laboratory data presented at a White House briefing, the virus is killed by heat, high levels of humidity, and exposure to ultraviolet light. Such findings offer hope that the spread of COVID-19 will be reduced during the summer.
Acting Undersecretary of the Department of Science and Technology for Homeland Security W. Bryan said that every 18 hours the number of virus particles is halved, indicating the 18-hour half-life of COVID-19 (in the absence of sunlight).
When the room temperature is raised from room temperature to 35 degrees and the humidity level is raised from 20% to 80%, the half-life of COVID-19 is reduced from 18 hours to 1 hour. These study results refer to cases where the virus is deposited on non-porous surfaces, such as door knobs.
With the addition of sunlight, the half-life of the virus is reduced from 6 hours to 2 minutes at 21-24 degrees and 80% humidity.
The lab found that when exposed to sunlight in the air at 21-24 degrees, COVID-19's half-life drops from 60 minutes to 1.5 minutes.
Thus, droplets of saliva infected with the virus are best preserved in dry and enclosed conditions, and COVID-19 dies much faster when exposed to direct sunlight.
The results of the research suggest that the pandemic will decrease in the summer, which will provide an opportunity to ease restrictions.
Source : www.washingtonpost.com