• A new strain of the novel coronavirus that's spreading from Europe to the US is more infectious than its predecessor but is not making people any sicker than before, according to a new global study first reported on by CNN.
  • Researchers call the new strain G614 and the previous strain D614. One of the researchers who worked on the study told CNN that the new mutation is "now the dominant form infecting people."
  • "Our global tracking data show that the G614 variant in Spike has spread faster than D614," the study said. "We interpret this to mean that the virus is likely to be more infectious. Interestingly, we did not find evidence of G614 impact on disease severity."
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A new strain of the novel coronavirus that's spreading from Europe to the US is more infectious than its predecessor, according to a new global study published in the journal Cell and first reported on by CNN.

Erica Ollmann Saphire, a researcher at the La Jolla Institute for Immunology who worked on the study, told CNN that the mutation is "now the dominant form infecting people."

"This is now the virus," Saphire added. The researchers call the new mutation of the virus, which causes a disease known as COVID-19, G614. The previous strain is called D614.

"Our global tracking data show that the G614 variant in Spike has spread faster than D614," the study said. "We interpret this to mean that the virus is likely to be more infectious. Interestingly, we did not find evidence of G614 impact on disease severity."

"Through March 1, 2020, the G614 variant was rare outside of Europe, but the end of March it had increased in frequency worldwide," they wrote. "The increase in G614 frequency often continues well after stay-at-home orders are in place and past the subsequent two-week incubation period."

The US is currently seeing a resurgence of the coronavirus outbreak after multiple states across the country began reopening despite the fact that they did not meet one or more of the reopening guidelines the White House had put forward.

White House guidelines said that states should see either a two-week decrease in new cases or a two-week decline in their share of positive coronavirus tests before reopening. But according to The New York Times, 18 out of the 30 states that began reopening as of May 7 were still seeing a daily uptick in new cases, while nine out of the 30 states did not have a decline in their share of positive tests.

Six states reopened without meeting any of the criteria: Kansas, Oklahoma, Missouri, Nebraska, Utah, and Iowa.

On Friday, the US reported 51,842 new cases, making it the third consecutive day that the country reported more than 50,000 new infections.