What you need to know about coronavirus on Friday, July 10 - CNN

A version of this story appeared in the July 10 edition of CNN's Coronavirus: Fact vs.

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That was the message from the World Health Organization's director-general, who made an emotional plea Thursday for international unity to fight the pandemic, blasting a lack of global leadership after President Donald Trump announced his intention to pull the United States from the organization.

"Can't we understand that the divisions or the cracks between us actually are to the advantage of the virus?"

He made the remarks as the US set a world record for the number of new Covid-19 cases reported in a single day: 63,247.

But countries are still divided in their response to the crisis.

US Health and Human Services Secretary Alex Azar on Thursday said that America was collaborating on Covid-19 vaccine development with the international community, but not with China.

Anthony Fauci, America's top infectious disease expert, said on Thursday, calling for regions with spiking Covid-19 cases to pause reopening efforts.

Their testimony highlights what they say is a pattern of systemic racism in one of the world's most highly regarded public health care systems, Salma Abdelaziz reports.

In response to their testimonies, NHS England said, "Covid-19 has shone a spotlight on stark health inequalities in our country."

The latest Covid-19 science

Transmission: The World Health Organization on Thursday released a new scientific report detailing how the coronavirus can pass from one person to the next -- including through the air during certain medical procedures, and possibly through the air in crowded indoor spaces.

Treatments: A two-drug cocktail used to treat hepatitis C may also help patients recover more quickly from coronavirus, researchers reported Thursday.

Seven incarcerated people have died in a coronavirus outbreak at a California prison.

Robert Redfield, the CDC director, echoed that message on CNN's coronavirus town hall on Thursday: "Let's not be going to bars right now.

CNN anchor and Boss Files host Poppy Harlow speaks with Delta Air Lines' CEO about how one of the largest airlines in the world is responding to the coronavirus (from mandating masks to blocking middle seats).