8 Sept 2020 Jahr - Second Wave
Beschreibung:
Gestation and symptomatic periods remain unchanged. Infection is prevalent among 15-25 year olds. All indications are that reinfection is common; that previous infection increases likelihood of reinfection. Studies suggest that a small percentage of the population may be naturally immune.
Zugefügt zum Band der Zeit:
Datum:
~ 3 years and 8 months ago