In the tweet, the president said he had’ a total and complete sign off from White House doctors yesterday. That means I ca n’t get it (immune) and ca n’t give it. Very nice to know!’.

The labeled Tweet is still available for those who click through the warning. Attempts to share the Tweet bring up an alert that reads’we try to prevent a Tweet like this that otherwise breaks the Twitter rules from reaching more people’.

A man in Nevada had covid-19 in March then recovered in April only to fall ill again in May. The first documented case of a coronavirus reinfection occurred in Hong Kong, where the patient showed no symptoms the second time around.

The Centers for Disease Control and prevention website says a person who has had and recovered from covid-19 may have low levels of virus in their bodies for up to 3 months after diagnosis. The science’does not imply a person is immune to reinfection’ from the virus.

Twitter said in March that it was taking a’zero-tolerance approach’ to coronavirus misinformation on its platform.

Update also included plans to flag or remove tweets meant to incite interference in the election or election results. Tweets from political figures with more than 100,000 followers are now more difficult to access.

Twitter has labeled several of Trump’s tweets for violating its policy on manipulated media and civic and election integrity for tweeting falsehoods about mail-in voting.