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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
Thanks Lars Erik! You know more about this then I do. This KI paper seems to indicate that there is T-cell immunity after COVID19 infection. How should that be interpreted?https://www.cell.com/cell/fulltext/S0092-8674(20)31008-4 …
Notice how Sanders deflected?
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.
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