People who grew up in the paleotropics = old world tropics from west Africa thru SE Asia have 1/10 to 1/100 the infections and deaths. They grew up around old world insect eating bats that carry an almost unlimited variety of SARS-like corona viruses. It appears they acquired life-long immunity/resistance from closely related viruses. If you have a working immune system, there is no need to get the vaccine if you had Covid. Getting the vaccine may cause more side-effects because now your body may over react. If your immune system does not work, the vaccine will not help much.
People who grew up in the paleotropics = old world tropics from west Africa thru SE Asia have 1/10 to 1/100 the infections and deaths. They grew up around old world insect eating bats that carry an almost unlimited variety of SARS-like corona viruses. It appears they acquired life-long immunity/resistance from closely related viruses. If you have a working immune system, there is no need to get the vaccine if you had Covid. Getting the vaccine may cause more side-effects because now your body may over react. If your immune system does not work, the vaccine will not help much.