Agreed. This tells us that we need to do 100 more studies and not much else. It doesn’t conclude that the people with these antibodies are actually any better o

Agreed. This tells us that we need to do 100 more studies and not much else. It doesn’t conclude that the people with these antibodies are actually any better off and not getting sick or not transmitting the disease. As you point out they might be worse off. Everyone here is getting very excited about this study because I suspect people think this means that everyone already had COVID so there is less reason to worry. This study says nothing of the sort.