Scientists deliberately gave people COVID — here’s what they learnt
Nature - Only half of participants who were exposed to the coronavirus developed infections, most with mild symptoms.
Nature - Only half of participants who were exposed to the coronavirus developed infections, most with mild symptoms.
To establish a novel SARS-CoV-2 human challenge model, 36 volunteers aged 18-29 years without evidence of previous infection or vaccination were inoculated with 10 TCID50 of a wild-type virus (SARS-Co
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