US President Donald Trump and vice-president Mike Pence have tested negative for coronavirus.
They were tested after a member of the US military who worked at the White House was found to have been infected.
A White House spokesman said the military official was identified by CNN as a personal valet to Mr Trump.
"We were recently notified by the White House medical unit that a member of the United States military, who works on the White House campus, has tested positive for coronavirus," the spokesperson said.
"The president and the vice-president have since tested negative for the virus and they remain in great health."
Mr Trump has now been tested at least twice for coronavirus.
A test on April 2 came out negative.
On April 3, the White House said anyone expected to be near Mr Trump or Mr Pence would be given a rapid Covid-19 test out of an abundance of caution.