Fauci also faced a series of questions from Rep. Jim Jordan, R-Ohio, regarding the spread of the virus and ongoing protests against systemic racism.
"I'm not favouring anybody over anybody", Fauci replied.
"Do you agree with that decision?" asked Scalise.
Fauci said the US did not shut down at the same level that Europe did. He gave similar responses when Scalise asked about the restriction of travel from the United Kingdom and the rollout of the administration's "15 days to slow the spread" and "30 days to slow the spread" guidelines earlier this year.More news: Private Division signs deals with Roll7, Moon Studios and League of Geeks
Speaking about an "alarming" increase in COVID-19 cases in states like Florida, Texas, California and Arizona - which came as a result of the reopening of the country's economy - Fauci said that the nation's health experts are focusing on "a bunch of other states" that have started to show a "very subtle increase in percent positives", or the percentage of total tests that turned out with positive results.
"While it remains unclear how long the pandemic will last, COVID-19 activity will likely continue for some time", Fauci, along with Centers for Disease Control and Prevention head Dr. Robert Redfield and Health and Human Services testing czar Adm. Brett Giroir said in prepared testimony for a special House panel investigating the pandemic.
Fauci responded: "We were in agreement on virtually all of those".
For months, pundits have speculated about a rift between Trump and Fauci as the latter's national profile has risen during the pandemic.
White House trade advisor Peter Navarro stoked concerns about such a disagreement when he published an op-ed in USA Today earlier this month claiming that Fauci had flip-flopped on the issue of wearing masks. "I don't think that we'll have everybody getting it immediately in the beginning".More news: Boston Marathon bombing: Dzhokhar Tsarnaev's death sentence overturned
As of Thursday afternoon, that number has increased to 151,650 deaths, among more than 7.4 million cases of COVID-19.
Fauci's testimony at a hearing of the U.S. House of Representatives subcommittee on the coronavirus crisis came at the end of a month in which U.S. coronavirus deaths rose by nearly 25,000 and cases doubled in at least 18 states, according to a Reuters tally, dealing a crushing blow to hopes of quickly reopening the economy.
"I think the difference between HIV and coronavirus is so different that I don't think you can compare them, because the body does not make a very good immune response against HIV so it makes vaccine development very hard", Dr. Fauci said.
Why it matters: He was responding directly to a tweet from President Trump, who took to the platform during the hearing to repeat his claim that the US has reported the most cases in the world due to increased testing. "You made comments on dating, baseball, and everything you can imagine".
"I'm not favoring anybody over anybody", Fauci answered.More news: Britain secures 60m doses of Sanofi/GSK coronavirus vaccine