#Droplets

1/ There have been lots of questions about filtration and SARS-CoV-2. To understand how effective a filter is going to be, you need to know two things: the size distribution
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One thing this crisis will have taught me is that many doctors, including those who work in academic medicine, are spectacularly dumb.https://www.nejm.org/doi/full/10.1056/NEJMp2006372 Imagine being so stupid that you don't understand
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We've just completed a 19-author analysis of the effectiveness of mask wearing, with 84 references. To explain what the science shows, I teamed up with the wonderful Prof @trishgreenhalgh CBE,
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Be My Quarantine (2022): Meredith and Jesse never wanted to be a couple, but once the quarantine hit they had a choice: be exclusive or be alone. What started as
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A thread, before anyone at PHO or MoH or PHSA or in gov't tries to walk back the statement *emailed* to @globeandmail regarding whether or not SARS-CoV-2 is airborne as
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1/ Interesting study on masks and #COVID19. Four patients with #COVID19 infections wearing surgical masks, cotton masks and no mask coughed onto a petri dish 20 cm from their mouth.
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Important update on masks, with Canada's chief public health officer saying wearing one could protect others from any droplets you may spread. It won't protect the wearer, but could protect
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The study we all have been waiting for (or at least I): should you keep increased distance (>1.5 m) when running/cycling to prevent getting infected/infecting others with COVID-19?New research suggests
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.@DrAmyActon: The culture change that is about to occur is in regard to this type of mask. We'll have information on http://coronavirus.ohio.gov  on how to make these. This will help
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Very important results confirm what I have suspected: SARS-CoV-2 survives very well in aerosols. No measurable decay over 12+ hours. Careful work by good team. https://twitter.com/ProfCharlesHaas/status/1251979162920914949 This a long time,
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#Thread on symptomatic, pre-symptomatic, asymptomatic #transmission. A symptomatic #COVID19 case is a patient who developed signs & symptoms compatible with #SARSCoV2 #coronavirus #infection. Symptomatic transmission refers to transmission from a
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When we talk, shout, sneeze, cough - or simply breathe - we release droplets & aerosols that looks like cloud coming out of the Tin Man’s headOnly difference: the “cloud”
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So, @WHO has published its new interim guidance on the use of #masks in fighting the #covid19 pandemic. No shockers here, it’s mostly what @WHO has said before, so I’ll
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1/ A sad anniversary: 1 year since one of the worst errors in the history of Public HealthSARS-CoV-2 is mostly transmitted through the airBut @WHO said, just a year ago,
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1/Thread on objections to face coverings for the general public. See this tweet for a longer lay summary.https://twitter.com/trishgreenhalgh/status/1249743825637199875?s=20 [Mute thread if you’ve had enough on this topic.] 2/Also draws on
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Why did #CDC this weekend drop cautions about choirs and "congregant singing, chanting and reciting" from its guidelines for communities of faith? On Friday May 22, the guidelines read:“consider suspending
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