Atlas has appealed the decision to remove his tweet and will be unable to post again while his appeal is under review. Twitter told the AP that the tweet violated its policy that prohibits false and misleading information about COVID-19 that could lead to harm. He joined the White House coronavirus task force in August after becoming a fixture on Fox News.
In a followup tweet posted later Saturday, Atlas wrote: "That means the right policy is @realDonaldTrump guideline: use masks for their intended objective - when close to others, especially hi risk".
Earlier guidance from USA officials didn't recommend widespread masking, but in April, the CDC recommended face coverings for the general public given that people without symptoms could unknowingly transmit the virus.
Even though several studies have confirmed the benefits of wearing masks to prevent novel Coronavirus transmission, people are still trying to impress their own beliefs upon others and indirectly encourage them to avoid wearing masks.
Last week, Twitter temporarily blocked the Trump campaign's ability to share a story about his presidential challenger, former Vice President Joe Biden.
"We are not defenseless against COVID-19", said CDC Director Dr. Robert R. Redfield.
Ten states reported their highest single-day tallies of new Covid-19 infections Friday, as experts say a unsafe fall surge of coronavirus infections is well underway.
According to U.S. government data, more than 8 million COVID-19 cases have been recorded in the country since the start of the pandemic, which resulted in 217, 918 deaths.
Birx, who serves as the task force's response coordinator, recently confronted Vice President Mike Pence about Atlas, telling his office he should be removed from the task force and that she "does not trust" him nor does she believe "he is giving Trump sound advice", the Post also reports.
Despite data showing otherwise, Trump has said repeatedly in recent weeks that the country is "rounding the turn" on coronavirus.
Michael Osterholm, director of the Center for Infectious Disease Research and Policy at the University of Minnesota, called the idea "the most incredible combination of pixie dust and pseudo-science I've ever seen". "And he thinks what we've done is really good, and now we'll take it to a new level".
After the Atlas tweet was removed on Sunday, Dr. Atlas emailed Newsweek -saying he couldn't understand why Twitter had deleted his tweet, explaining it contained "multiple citations", on the effectiveness of not wearing a mask.