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Illustration: Aïda Amer/Axios

Twitter flagged a tweet from President Trump on Sunday morning in which he claimed, without evidence, that he is now "immune" to the coronavirus.

Why it matters: Trump continues to be one of the most prominent sources of coronavirus misinformation, eight months into the pandemic.

Details: While Trump's doctors have said that he is no longer transmitting the virus, they have not said when the president's last negative test was.

  • The science on immunity for people who recover from the virus is still unclear.
  • The CDC says a person infected with COVID-19 may not need to get tested again in the three months after recovery, but it "does not imply a person is immune to reinfection."

Background: Trump has repeatedly claimed that he is now immune to the coronavirus, saying the same in an interview with Fox News' Maria Bartiromo earlier on Sunday.

  • Back in May, Twitter stated they would flag coronavirus-related tweets by "anyone sharing misleading information that meets the requirements of our policy, including world leaders."
Screenshot: Twitter

Go deeper: Twitter will flag premature claims about who won the 2020 election

Go deeper

Twitter suspends accounts of Michael Flynn, Sidney Powell

Former National Security Adviser Mike Flynn speaking at the Million MAGA March in Washington, D.C., on Dec. 12. Photo: Olivier Douliery/AFP via Getty Images

Twitter permanently suspended the accounts of former national security adviser Michael Flynn and President Trump's lawyer Sidney Powell on Friday for breaking the platform's "Coordinated Harmful Activity" policy.

Why it matters: The action comes as part of the platform's crackdown on QAnon-related content. Both Flynn and Powell have promoted the far-right conspiracy theory that purports without evidence that the "deep state" is waging war against President Trump.

Updated 7 hours ago - World

Skripal poisoning suspects linked to Czech blast, as country expels 18 Russians

Combined images released by British police in 2018 of Alexander Petrov (L) and Ruslan Boshirov, who are suspected of carrying out an attack in the in the southern English city of Salisbury using Novichok, a military-grade nerve agent, and also the2014 Czech depot explosion. Photo: Metropolitan Police via Getty Images

Czech police on Saturday connected two Russian men suspected of carrying out a poisoning attack in Salisbury, England, with a deadly ammunition depot explosion southeast of the capital, Prague, per Reuters.

Driving the news: Czech officials announced Saturday they're expelling 18 Russian diplomats they accuse of being involved in the blast in Vrbětice, AP notes. Czech police said later they're searching for two men carrying several passports — including two with the names Alexander Petrov and Ruslan Boshirov.

Indianapolis mass shooting suspect legally bought 2 guns, police say

Marion County Forensic Services vehicles are parked at the site of a mass shooting at a FedEx facility in Indianapolis, Indiana, on Friday. Photo: Jeff Dean/AFP via Getty Images

The suspected gunman in this week's mass shooting at a FedEx facility in Indianapolis legally purchased two "assault rifles" believed to have been used in the attack, police said late Saturday.

Of note: The Indianapolis Metropolitan Police Department's statement that Brandon Scott Hole, 19, bought the rifles last July and September comes a day after the FBI told news outlets that a "shotgun was seized" from the suspect in March 2020 after his mother raised concerns about his mental health.