152 Israeli pts w/ Breakthrough COVID infx >7d after 2nd Pfizer vax; all hospitalized, 38 w/ Poor outcome & 22% (34/152) died. All were older, most males, w/ comorbidities, 40% immunocompromised; high risk w/ RTX & low anti-spike IgG titers https://t.co/x1Uuyo7qim