There are over 40,000 confirmed cases of Coronavirus in China and over 900 people have died from the epidemic in that country alone, but President Donald Trump on Monday says Americans should not worry because China has told him things will be better by April.

Trump cited “the heat” as the cause for his optimism.

Steve Herman, White House bureau chief for Voice of America News (VOA), quoted the president speaking to a group of governors visiting the White House Monday morning.

Trump made a similarly false claim on Friday.

Infectious disease experts disagree.

“It would be reckless to assume that things will quiet down in spring and summer,” Dr. Peter Hotez, dean of the National School of Tropical Medicine at the Baylor College of Medicine in Texas told CNN. “We don’t really understand the basis of seasonality, and of course we know we absolutely nothing about this particular virus.”