A scientist who warned that the coronavirus would kill 500,000 people in the United Kingdom has presented evidence that if current measures work as expected, the death toll would drop to roughly 20,000 people or fewer.

Scientist and Imperial College author Neil Ferguson said Wednesday the coronavirus death toll is unlikely to exceed 20,000 and could be much lower if lockdown measures continue, according to New Scientist. He added that he is “reasonably confident” that Britain’s health system can handle the burden of treating coronavirus patients.

“There will be some areas that are extremely stressed, but we are reasonably confident — which is all we can be at the current time — that at the national level we will be within capacity,” Ferguson said.

The Imperial College had previously warned of modeling that suggested over 500,000 would die from the virus.

“This is a remarkable turn from Neil Ferguson, who led the @imperialcollege authors who warned of 500,000 UK deaths — and who has now himself tested positive for #COVID,” former New York Times reporter Alex Berenson wrote on Twitter.

1/ This is a remarkable turn from Neil Ferguson, who led the @imperialcollege authors who warned of 500,000 UK deaths - and who has now himself tested positive for #COVID; https://t.co/AfEeePbZL1 — Alex Berenson (@AlexBerenson) March 26, 2020

Ferguson credited the U.K.’s lockdown for stopping the spread of the virus, but as Berenson points out, the country “only began its lockdown 2 days ago, and the theory is that lockdowns take 2 weeks or more to work.” New data shows that the transmission rate of the virus, the measure of how many other people a carrier usually infects, is up from 2.5 to just over three, Ferguson said.

“That adds more evidence to support the more intensive social distancing measures," he said.

Fox News host Laura Ingraham said on Twitter following the revised projections, "Now that we are seeing that the ICU bed & vent projections from orig Imperial College study are almost certainly WRONG, it is critical that we think immed about staggered, gradual opening of our country with new protocols."

Now that we are seeing that the ICU bed & vent projections from orig Imperial College study are almost certainly WRONG, it is critical that we think immed about staggered, gradual opening of our country with new protocols. — Laura Ingraham (@IngrahamAngle) March 26, 2020

"The guy behind the doomsday Imperial College model now says he expects UK not to run out of ICU beds and UK deaths 'unlikely to exceed 20,000 and could be much lower,'" American Commitment President Phil Kerpen tweeted.

The guy behind the doomsday Imperial College model now says he expects UK not to run out of ICU beds and UK deaths "unlikely to exceed 20,000 and could be much lower." https://t.co/MgwGthcNNT — Phil Kerpen (@kerpen) March 26, 2020

Stanford scientists recently wrote an opinion article suggesting that more information is needed before settling on a coronavirus mortality rate and posited that mass quarantines aren’t necessarily the most logical answer to combating the virus.

Almost 500,000 coronavirus cases have been confirmed across the globe, and more than 22,000 people have died, while almost 120,000 have recovered.

Editor's Note: A previous version of this story reported that an estimate of the number of people who would die as a result of the coronavirus in the U.K. had been revised from 500,000 to 20,000. This story has been amended to note that the lower figure is contingent upon current measures that have been put in place working as expected.