> lose effectiveness sooner than originally thought To be precise, have partially reduced effectiveness against transmission of a variant of the virus evolved

> lose effectiveness sooner than originally thought To be precise, have partially reduced effectiveness against transmission of a variant of the virus evolved after the creation of the vaccine, while still preventing almost all severe illness/death. Possible ways forward: (1) give people additional booster shots of the existing vaccine; (2) develop a modified vaccine booster targeted more precisely to the variant virus; (3) keep public health measures in place (e.g. requiring everyone to wear face masks indoors) so long as Re > 1. > What if that's unachievable though? It has been more or less achievable for past vaccinations. It is a logistical challenge to be sure, but modern society is certainly capable of it if it is prioritized.