I’ve been wanting to give an update on vaccines, so this will be a large post giving an update on the recent happenings. 𝗠𝗼𝗱𝗲𝗿𝗻𝗮: Reminder that this is an mRNA vaccine, requiring cold storage at -20C. Today they released (by press) their primary efficacy data that showed of 196 COVID-19 cases, of which 185
James Scott, lead at the Occupational and Environmental Health team at the Dalla Lana School of Public Health in Toronto has an incredible lab where they test N95 masks for Health Canada. This lab, in collaboration with CBC Marketplace, has subsequently done an excellent and in-depth analysis on a few different kinds of face covering
I want to quickly write a post on the recent case of re-infection coming out of the US. Specifically about the re-infection in a 25-yr old <2 months later, with worse symptoms second time around. Genetic discordance between the two infections was greater than explained by short-term in vivo evolution, ie, presumably two separate infections.
I’ve written before how risk of exposure to SARS-CoV-2 (the virus that causes Covid-19) is a continuum and that there are no exact risk thresholds for say duration of contact or appropriate distance. For instance, wearing a mask reduces risk but doesn’t eliminate it. It is the same with distancing. 6ft may not be sufficient
I kid. In fact, this post will not be on whether masks are useful or not. Because we have ample evidence to show that masks, when used appropriately, reduces the transmission of SARS-CoV-2 (the virus that causes Covid-19). Instead, today I want to spend some time discussing what kinds of masks are effective, and what