Currently, there is no vaccine that can completely prevent infection with coronavirus infection. Vaccination, even at such small intervals, will still protect against the disease and significantly reduce the likelihood of severe infection.
Taking these arguments into account, most countries recovered from the disease quite calmly and most of the country was vaccinated.
In this case, vaccination leads to the formation of antibodies, in the presence of which the disease is completely asymptomatic or practically undetectable. The antibodies developed after vaccination will last for several years. Therefore, the question of whether to get vaccinated is not yet resolved,