Depends on variability. Lots of flu shots due to fessing on prevalence. If natural immunity lasts for covid, fine, but if it’s too flu like there’s going to b

Depends on variability. Lots of flu shots due to fessing on prevalence. If natural immunity lasts for covid, fine, but if it’s too flu like there’s going to be a need for shots. We’ll see it develop in real time. So far, there’s no evidence of a sterilizing vaccine or a once and done infection process.