I agree, antibody testing needs to replace testing testing
first, if someone has good levels of antibodies, they won’t need a shot. Great for them. Second, if someone has poor levels of antibodies 15 days post-shot, they need to know that, too, before they accept that pool party invite
Antibodies to the original Covid won’t work against the delta variant as we are seeing. The delta is now the dominant strain. Immunity to delta will require natural immunity to delta (suffering Covid delta variant) or an updated vaccine.