yes this is a good thing, the virus[sars2] has a feww features that allow partial stealth, and has accumulated variations that contribute to possible immune eva

yes this is a good thing, the virus[sars2] has a feww features that allow partial stealth, and has accumulated variations that contribute to possible immune evasion. this should not be taken casually, and perturberance of memory immunity should it occur would be a variant profile of high concern.