Quarantine vs Isolate? And for how long?

??? ???? ???? ??? ?????????? ?? ??????? ???? ???? ?? ??? ???? ????? ??????????? . This has been a topic of discussion a fair amount lately, especially with kids going back to school and the POTUS’ testing positive for Covid-19. How long does one quarantine for? That brings me to my first point: does one

Re-infection Take 2

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.

Transmission Risk as a Continuum

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

Unmasking the Mask Debate

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

94% 6% What did the CDC Say?

It’s been a few days since the CDC released data saying 94% of Covid-19 deaths had underlying medical conditions in addition to positive Covid-19 diagnosis. But I still see this misinformation being spread around — so I’d like to address this today. The way this has been interpreted is that the CDC “quietly updated” its COVID-19 data

Is a Positive Truly a Positive?

Today, a new article came out in ??? on whether the ?????-?? ??? ???? ?? ??? ????????? ??? ?? ???? ???????? ???? ?? ?????? ? ???????? ?? ???. So let’s look into this a tad more. ??? ????? ????????? ??????? ???????? ?? ??? ?????. What this means is that imagine you are using your camera

Risk of SARS-CoV-2 Transmissions

This latest publication in BMJ, published 25 August 2020, by the University of Oxford has attempted to qualify the risk of SARS-CoV-2 transmission from asymptomatic people in different settings. This guide shows how transmission risk may vary with setting, occupancy level, contact time, and face coverings. This graph is intended to be an initial quick