Is there really reason to hope for a less contagious coronavirus this summer?

The White House has released a study showing that the virus has poor resistance to heat, humidity and direct sunlight. Could this be an indication of its seasonality, already invoked by Donald Trump?

William Bryan, head of the Science & Technology department at the White House during the press briefing on April 23.
William Bryan, head of the Science & Technology department at the White House during the press briefing on April 23. Drew Angerer / AFP

THE QUESTION. At a White House press conference on Thursday, a senior official in the Department of Homeland Security, Bill Bryan, presented the elements of a study showing that the new SARS-CoV-2 coronavirus was poorly resistant to an atmosphere very hot and humid, as well as direct sunlight.

Elements that support the statements made by President Donald Trump at the beginning of February. “The virus we are talking about, many people think it will go away in April as the heat arrives», He assured then. Could these new elements thus reinforce the hope that the virus could be less contagious with the arrival of summer?

CHECK. The study, carried out in a Maryland laboratory dedicated to bacteriological threats, has not been published or even posted online. But some boards of a presentation were made available by Yahoo News. We learn that two very different types of analysis

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