8 sett 2020 anni - Second Wave
Descrizione:
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.
Aggiunto al nastro di tempo:
Data:
~ 3 years and 8 months ago