Meadows tested positive for the virus on Wednesday, according to one of the people, though it wasn’t clear whether he had developed symptoms of Covid-19, the disease caused by the virus. He informed a close circle of advisers after Tuesday’s election, another person said.

At least four other White House officials have been infected, including Cassidy Hutchinson, one of Meadows’s closest aides. A senior Trump campaign aide, Nick Trainer, is also infected, according to people familiar with the matter…

Some White House aides were aware earlier in the week that Meadows had become infected but were told to keep it quiet, several people said.

Meadows was at the Trump campaign headquarters with the president on Tuesday without a mask, and returned on Wednesday also without a mask, two people familiar with the situation said.