This was reported by the Petersburg Diary.
It is noted that according to Gusev, a person who has a coronavirus-induced illness without symptoms is a carrier of the infection without suspecting it.
He added that with asymptomatic carriage, the transition of the disease to a severe form can take from several days to 4-6 hours.
Earlier, the head physician of the infectious diseases hospital in Kommunarka, Moscow, Denis Protsenko, said that doctors discovered another symptom of coronavirus - most patients in the hospital have rashes on their arms and stomach.