Does heat and sunlight slow down COVID-19? White House doctor reavels his research findings
The results show that a rise in temperature, humidity, and sunlight all can speed up how fast the virus is destroyed.
The President of the United States, Donald Trump, during a White House press briefing on Thursday, showcased recent studies suggesting that heat and sunlight can slow the spread of the COVID-19.
During the briefing, William N. Bryan, the acting undersecretary for science and technology at the Homeland Security Department, touted the latest lab studies carried out by the agency at the U.S. Army’s biosecurity laboratory at Fort Detrick, Md.
High amounts of Sunlight, Humid and Warm conditions
The laboratory results, which have not been peer-reviewed, show that the COVID-19, like many other viruses, does not survive as long when it’s exposed to high amounts of ultraviolet light, humid and warm conditions.
The results show that a rise in temperature, humidity, and sunlight all can speed up how fast the virus is destroyed, based on measurements of its half-life when exposed to these conditions.
The half-life is a time measurement it takes for a given amount of the virus to reduce by half.
Bryan explained, “So if we look at an 18-hour half-life, after every 18 hours, the life of the infection is cut in half. So if you start with a thousand units of the virus, in 18 hours, you are down to 500, in 18 hours after that, you are down to 250, and so on.”
A slide shared by Bryan revealed the half-life of the infection, in the absence of sunlight (indoors), drops from 18 hours to one hour when the temperature increases from around room temperature (70 to 75 degrees) to 95 degrees and the humidity increases from 20% to 80%.
Bryan compiled, “Within the circumstances, we have examined to date, the infection in droplets of saliva lives best in indoors and dry conditions. The virus dies fastest in the presence of direct sunlight.”
What are your views on this? Share in the comments bar below.