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Trump suggests injecting disinfectant or light into patients

Disinfecting the streets in Suresnes, near Paris REUTERS/Christian Hartmann/File Photo

The coronavirus appears to weaken more quickly when exposed to sunlight, heat and humidity, a U.S. official said on Thursday in a potential sign that the pandemic could become less contagious in summer months.

U.S. government researchers have determined that the virus survives best indoors and in dry conditions, and loses potency when temperatures and humidity rise – and especially when it is exposed to sunlight, said William Bryan, acting head of the U.S. Department of Homeland Security’s Science and Technology Directorate.

“The virus dies quickest in the presence of direct sunlight,” he told a White House news briefing.

The findings could bolster hopes that the coronavirus will mimic the behavior of other respiratory diseases like influenza, which typically are less contagious in warm weather.

But the coronavirus has also proven lethal in warm-weather places like Singapore, raising broader questions about the impact of environmental factors.

President Donald Trump said the findings should be interpreted cautiously, but also claimed vindication for previously suggesting that the coronavirus might recede in summer.

“I once mentioned that maybe it does go away with heat and light. And people didn’t like that statement that much,” he said at the briefing.

Trump also said researchers should try to apply their findings to coronavirus patients by inserting light or disinfectant into their bodies.

“Is there a way we can do something like that by injection, inside, or almost a cleaning?” he said. “It would be interesting to check that.”

18 HOURS VERSUS TWO MINUTES

On nonporous surfaces like stainless steel, the new coronavirus takes 18 hours to lose half its strength in a dark, low-humidity environment, Bryan said.

In a high-humidity environment, that half-life dropped to six hours, and when the virus was exposed to high humidity and sunlight, the half-life dropped to two minutes, he said.

Researchers found a similar effect with the coronavirus that was suspended in the air – simulating the coughing or sneezing that often spreads the disease. In a dark room, the virus maintained half its strength for an hour. But when exposed to sunlight, it lost half its strength in 90 seconds, Bryan said.

Researchers also found that isopropyl alcohol was a more effective disinfectant than bleach, he said.

Trump said Americans might need to maintain social distancing into early summer, even though some states were showing signs of progress.

Trump has encouraged protests against social-distancing restrictions in some states. But he criticized Georgia Governor Brian Kemp, a fellow Republican, for moving too quickly.

“I want the people in Georgia to be safe, and I don’t want this thing to flare up because you’re deciding to do something that is not in the guidelines,” he said.

 



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