Reconstructing the transmission dynamics of varicella in Japan: an elevation of age at infection.
Ayako SuzukiHiroshi NishiuraPublished in: PeerJ (2022)
Routine varicella vaccination has successfully reduced infections in pre-school and early primary school age children, but has also resulted in increased infection rates among adolescents. This temporary increase was caused both by the increased age of susceptible individuals and increased transmission risk among adolescents resulting from the dynamic nature of varicella transmission. Monitoring susceptibility among adolescents will be important to prevent outbreaks over the next decade.