Martin Kulldorff

This is weird! @SWAtlasHoover stated the simple fact that immunity is higher than those with antibodies, whereupon Dr. Fauci criticizes him without contradicting what was actually said. Stating a simple scientific fact is not "extraordinarily inappropriate". What is going on?https://twitter.com/peterstaley/status/1309848839621423107 …

Dear @MartinKulldorff Yes, we need open discourse. But the reports @SWAtlasHoover references (one of which we published) describe T cell cross-*reactivity* NOT cross-immunity. To equate cross-reactive T cells with immunity to SARS-CoV-2 is unfounded & simply false at this point

This is an important paper showing that most people exposed to SARS-CoV-2 develop T cells and antibodies that recognize the virus. They also found that some people w/o antibodies have T cell responses. But, the majority has both. It's unclear if T cells alone provide "immunity".

Moreover, he referred to "cross-immunity". That is not what this paper is about. The concept of x-protection is very exciting. We *hope* that pre-existing cross-reactivity may afford some level of protection. But it is unfounded to base public health policy on these findings.