Every infected person is host to the evolution of the virus. It is likely to become vaccine resistant given enough reproduction cycles. And it could become more, or less, deadly. If it starts killing children quickly, like measles, and is vaccine resistant because we let it simmer in 35% of the population, we will be very sorry.
Our best defense against this is to vaccinate as quickly as possible. Measles now rarely kills our children, due to vaccination.
Measles is fundamentally different. Asymptomatic transmission and zootic reservoirs have no impact. It's not a leaky vaccine and we aren't in the midst of a measles pandemic. Long lasting sterile immunity is provided by the measles vaccine. It makes a lot of sense to mass vaccinate for measles.
Every infected person is host to the evolution of the virus. It is likely to become vaccine resistant given enough reproduction cycles. And it could become more, or less, deadly. If it starts killing children quickly, like measles, and is vaccine resistant because we let it simmer in 35% of the population, we will be very sorry.
Our best defense against this is to vaccinate as quickly as possible. Measles now rarely kills our children, due to vaccination.