A wave of Republican politicians and conservative personalities noted their follower counts were dropping. Then Twitter confirmed it had taken down spam accounts and profiles spreading conspiracy theories.
Dr. Scott Atlas inspired controversy after making remarks that face masks were ineffective at curbing the spread of COVID-19.
The key member of the White House Coronavirus Task Force said that new COVID-19 infections "are going to go up" further over the next several weeks.
Fauci told NBC's Today show Monday that he takes issue with Dr. Scott Atlas telling people in Michigan that restrictions will only stop "if people rise up."
The White House coronavirus task force member has suggested his words had been misinterpreted after a significant backlash.
Dr. Anthony Fauci recently offered criticism of Atlas, who is said to have President Donald Trump's ear.
The U.S.'s leading immunologist comments were followed by reports the White House was using heard immunity as a basis for policy.
Atlas slammed COVID policies of young people, tweeting a link to an article about its impacts on children. But none of Atlas' criticisms were discussed by the experts in the story.
The NIAID director said there is "no doubt" that masks prevent the spread of the coronavirus.
"Masks work? NO," Scott Atlas tweeted Saturday, followed by misrepresentations of the science behind the effectiveness of masks in battling the coronavirus pandemic.
Scientists advocating the herd immunity met with White House officials last week
Science editor-in-chief Holden Thorp's comments follow a string of criticism against the White House coronavirus adviser.
Dr. Robert Redfield, director of the CDC, and Dr. Scott Atlas haven't seen eye to eye on the current state of the coronavirus outbreak in America.
Atlas' appointment is viewed by some as an attempt to counter the opinions of Coronavirus Task Force members such as Dr. Anthony Fauci.
The signatories wrote they have a "moral and an ethical responsibility to call attention to the falsehoods and misrepresentations of science recently fostered" by the White House adviser.
Herd immunity refers to letting the coronavirus spread "naturally" in a population.