Twitter flagged a post by Donald Trump claiming he is "immune" to COVID-19.
"A total and complete sign off from White House doctors yesterday," the president wrote on Sunday. "That means I can't get it (immune), and can't give it. Very nice to know!!!"
For the third time in less than a week, Twitter took action against Trump's tweets, hiding the message behind a warning that it violates company rules "about spreading misleading and potentially harmful information" related to the novel coronavirus.
Twitter has been battling COVID-19 misinformation since the pandemic began; the social network requires people to remove tweets that include hazardous information like drinking bleach as a cure, certain groups are more susceptible to the virus, or government guidelines are ineffective.
In this case, Trump's suggestion that he is "immune"—despite scientists still studying the illness and humans' defences against it. According to the Centers for Disease Control and Prevention, health professionals have "limited information" about reinfections, and recommend everyone continue to wash their hands regularly, stay at least six feet away from others, and wear masks.
Sunday's action comes days after Facebook and Twitter cracked down on a Trump post falsely suggesting the seasonal flu is more deadly than COVID-19. Twitter also recently required the Commander in Chief to remove a tweet, according to CNET, that contained the email address of a columnist.
Social media sites are also policing posts containing death threats directed at Donald Trump and First Lady Melania Trump, who tested positive for COVID-19 on Friday. Facebook last week said the firm is "removing death threats or content targeted directly at the president that wishes his death, including comment on his posts or his page—in addition to content tagging him." Twitter also announced that while "tweets that wish or hope for death, serious bodily harm, or fatal disease against are not allowed and will need to be removed," they do not necessarily lead to suspension.