COVID-19 pandemic: Latest updates from U.S.

The United States now has more reported coronavirus cases than any other country in the world.

The total includes cases from all 50 states, the District of Columbia and other U.S. territories, as well as all repatriated cases, CNN reported. 

U.S. President Donald Trump said his administration is preparing new coronavirus guidelines that would characterize U.S. counties as high-risk, medium-risk or low-risk.

Trump refuses to cancel August Republican Convention

Trump said on Thursday that he would not cancel the Republican National Convention in August in Charlotte, North Carolina, because of the coronavirus.

In an interview with Fox News, Trump said he believed the country will have rebounded from the coronavirus outbreak by then. "We're not going to cancel," Trump said, adding "I think we're going to be in great shape long before then."

New York: Trial of sharing single ventilators between two patients begins

New York is the worst-hit region in the country, with over 37,000 confirmed cases 365 deaths so far. "The next few months will be painful and stress our health care system like never before," Mayor Bill de Blasio's tweet said on Thursday.

An expected shortfall of ventilators - machines that support respiration for people who have lost the ability to breathe on their own - is substantial, as a surge of cases overwhelm New York hospitals, New York Governor Andrew Cuomo told a news conference.

At least one New York hospital has begun a trial of sharing single ventilators between two patients.

25 confirmed cases on aircraft carrier

According to CNN, there are now 25 sailors who have tested positive for coronavirus aboard aircraft carrier USS Theodore Roosevelt.

There are about 5,000 personnel on board the carrier, the report said.