Scientists Tried to Reinfect People With Covid – and Failed
Scientists tried to reinfect people with Covid but found it impossible, even when they ramped up the dose 10,000-fold, according to the latest results from the Covid challenge trials.
Tag: Challenge trial
Half of People Deliberately Infected With Coronavirus Did Not Get Sick, Study Finds
Of 34 people deliberately infected with coronavirus, just 18 (53%) tested positive by PCR and 17 (50%) had symptomatic infection, confirming how much innate protection many have to the virus.
