[jandrewrogers]

Immunity lasts a long time in the vast, vast majority of people. People that survived SARS-CoV-1 still have strong immune response almost two decades later. You are improperly conflating lack of antibodies with lack of immunity, they are not the same thing. Antibodies are the product of active infection, not having immunity.

It is unhelpful and disingenuous to suggest that lack of antibodies imply lack of immunity or that rare edge cases are the norm. In disease, there are always edge cases.