Five senior US Republicans have quarantined themselves after coming into contact with a person who tested positive for coronavirus.
The members of Congress, who include Texas Senator Ted Cruz, self-isolated after they shook hands with the infected individual at a conference.
President Donald Trump, who was also at the event last month, insists he is in good health and has not taken a test.
One Democrat has also self-isolated after she met someone with the virus.
There are more than 700 confirmed cases in the US and 26 people have died so far.
President Donald Trump’s newly appointed chief of staff, also met the person and is in self-quarantine.
He is not exhibiting any symptoms and a precautionary test came back negative.