This is another retrospective observational study, this one from England looking at the transmission of COVID-19 in both its alpha and delta variants to other adults. It helped me refine how I think about vaccines, let me share the findings and my thoughts.
household transmission of COVID-19
Those are the words of Pliny the Elder (except for the COVID part). Coincidentally, he died while trying to save friends during the eruption of Mt. Vesuvius. As it turns out, today's home is also where COVID-19 comes to visit, brought in by household members.