People who test positive for Covid-19 are actually most contagious in the few days before they develop symptoms, according to CNN’s Dr. Sanjay Gupta, as President Trump, first lady Melania Trump and adviser Hope Hicks all tested positive for the virus.
“If this is the point where he started to develop symptoms, it probably meant that you were doing most of … what they call the viral shedding in the couple three days before that. OK, so today is Friday, symptoms Thursday, so now you're going back to Tuesday or Monday in terms of contagiousness. It also makes a difference on the back side in terms of when someone might be cleared from isolation,” he said.
Contact tracers would focus on that earlier time frame, Gupta explains.
President Trump has “mild symptoms” from the coronavirus, a White House official told CNN.
“I think that one the most critical points here — and I think this is what’s different about this particular virus — is that the contagiousness, like how contagious somebody is, tends to be the highest in the couple three days before they develop symptoms,” Gupta explained.