WHO

The report states that the coronavirus most likely did not originate at the wet market in Wuhan and that a lab leak was "an extremely unlikely pathway."

The WHO declared a pandemic. The NBA shut down its season. President Trump banned travel from Europe. Tom Hanks tested positive. On one day a year ago, the coronavirus became very real in America.

A small study in South Africa has raised concerns about the effectiveness of the AstraZeneca vaccine, particularly in fighting virus variants.

Biden signed 15 executive actions on priorities including COVID-19, climate change, racial justice — and a rollback of some Trump rules.

Joe Biden has made dozens of campaign promises. A significant amount of his agenda centers on reversing or updating positions taken by the Trump administration.

A Trump administration spokesman says Washington will continue to engage the rest of the world in vaccine development but won't be "constrained" by the "corrupt" World Health Organization.

Vaccine candidates are in advanced clinical trials, and WHO's director-general expresses hope they will be effective. But until then, he said, the world is reliant on "the basics" of disease control.

So far, there is no seasonal pattern to coronavirus outbreaks, the WHO's Dr. Margaret Harris says. Lockdowns may not be necessary, she says, but infections rise when restrictions are relaxed rapidly.

The WHO cited a scientific study published last week suggesting that proposed COVID-19 drug hydroxychloroquine may do more harm than good in halting its study to review data.

Philanthropist Bill Gates and others warn against undercutting the World Health Organization during a crisis that's being compared to World War II and the Great Depression.