incubation period * Original species 5-6 days * Delta Strain 4 days * Omicron strain 3 days The most spread period 1-2 days before onset of symptoms to 2-3 days after onset of symptoms Spreading period 2 days before symptoms to 10 days after symptoms Accurate detection time 2 days before symptoms to 7 days after symptoms Infection detection time 2 days before onset to 10 days after onset, but 10 days to 3 months after onset, “residues” may be found.
The average incubation period for omicron is 3 days (other mutants are about 5 days). After day 7, most are no longer infectious. However, we should self-quarantine for 10 days.