The U.S. is "going in the wrong direction” in its effort to contain the novel coronavirus and daily case counts could more than double if behaviors don’t change, infectious disease expert Anthony Fauci said Tuesday.

His comments came the same day as new COVID-19 cases rose by more than 47,000 in the country, according to a Reuters tally, the biggest one-day spike since the start of the pandemic.

Pinpointing indoor gatherings, particularly bar scenes with lines out the door and patrons standing shoulder to shoulder, Fauci told a Senate panel that new cases of COVID-19 could rise to 100,000 a day.