Coronavirus antibody blood testing takes place in the Staten Island borough in New York City Photograph:( AFP )
The total number of cases in the US, the nation hardest-hit by the global pandemic, at more than 3.36 million.
The United States on Monday confirmed 59,222 new coronavirus cases in the previous 24 hours, Johns Hopkins University reported in its real-time tally.
That put the total number of cases in the US, the nation hardest-hit by the global pandemic, at more than 3.36 million, the Baltimore-based University said at 8:30 pm (0030 GMT Tuesday).
Another 411 deaths were reported, bringing that total toll to 135,582.
The country has seen a resurgence of cases in the so-called Sun Belt, stretching across the south from Florida to California.
That uptick has prompted some states to backtrack on loosening their anti-virus restrictions -- or to reinstate tougher measures.
On Monday, California's Democratic Governor Gavin Newsom ordered the closure of indoor restaurants, bars, movie theatres, hair salons and houses of worship to stem the spread.