open.substack.com/pub/moreisdi...
The story here starts with a mystery. Both in-vitro studies & clinical trials show Xocova is as effective as Paxlovid mg-per-mg for treating COVID-19. So why did Xocova achieve a 67% reduction in risk in a prophylactic trial (NEJM, 2026) while Paxlovid only 32%?
