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November 1, 2020 By e-Patient Dave 7 Comments

Great NY Times visualization of how masks work against mists (aka aerosols)

After my previous post Winter’s coming. Time to talk about ventilation for coronavirus defense I’ve been amazed that hardly any businesses I’ve visited are using HEPA filters – or if they are, they’re not touting it. Why??

This is important information, with potentially huge benefits for businesses and customers alike. Why are we all focused on waiting for treatment, when all of us (anywhere on the political spectrum) want two things:

  • Be safe
  • Get back to “as normal as possible” as fast as possible.
[Read more…]

Filed Under: Coronavirus Tagged With: coronavirus, face masks, filters, hepa, masks 7 Comments

September 27, 2020 By e-Patient Dave 12 Comments

Winter’s coming. Time to talk about ventilation for coronavirus defense.

Update Nov 11: see also these related posts –

  • How universal masking minimizes COVID-19 risk (great graphic) May 28
  • Great NY Times visualization of how masks work against mists (aka aerosols) Nov 1
    • For a much deeper dive into the mysteries of aerosols (aka mists), with links to things like National Geographic’s risk calculator, see the Google Doc https://tinyurl.com/FAQ-aerosols maintained by José L. Jiménez (@jljcolorado) and other aerosol specialists.
  • The problem with “herd immunity” as a COVID-19 strategy May 4
  • … and the many informative comments on the original Facebook post, linked in this article, as well as comments on this post.
[Read more…]

Filed Under: Coronavirus Tagged With: air purifiers, coronavirus, covid-19, hepa 12 Comments

July 6, 2020 By e-Patient Dave 5 Comments

Zeke Emanuel: “Reopen intelligently. Reopen safely.”

Ezekiel Emanuel MD is the profane, street-wise Chicago politician widely considered (among people I trust, anyway) to be the architect of the Obamacare legislation, not least because of his ability to design it so enough anti-reform forces would let it through. Those pragmatic compromises are the source of much distress among those people I trust, because the law’s not perfect. But it is perfect in the sense that the legislation passed, and has survived all attempts by vehement opponents to cut its nuts off (so far). So when he gives advice, I believe it will be pragmatic and street-wise. And probably blunt. But winning.

Here’s his advice, last week, on what activities are relatively safe or dangerous as this country continues re-opening for better or worse.

Source: EzekielEmanuel.com
[Read more…]

Filed Under: Coronavirus Tagged With: coronavirus, covid-19, public health, reopening, zeke emanuel 5 Comments

June 11, 2020 By e-Patient Dave 25 Comments

How is herd immunity working out for Sweden?

Two months ago I blogged about virus data, and noted that a “natural experiment” was happening in Scandinavia, where Sweden was trying a strategy of herd immunity. It appears to be a complete failure.

The idea was that herd immunity would cause the number of new COVID-19 cases to decline, without the shutdown policies and economic impact adopted by its Scandinavian neighbors. But the rate of new cases in Sweden hasn’t declined, while its neighbors’ all have:

[Read more…]

Filed Under: Coronavirus Tagged With: coronavirus, covid-19, herd immunity, scandinavia, sweden 25 Comments

May 28, 2020 By e-Patient Dave 2 Comments

How universal masking minimizes COVID-19 risk (great graphic)

I’ve been blogging about personal responsibility, particularly understanding the risks of emerging into an uncertain world and taking effective action to protect ourselves.

[Read more…]

Filed Under: Coronavirus Tagged With: asymptomatic, coronavirus, face coverings, face masks, facemasks 2 Comments

May 21, 2020 By e-Patient Dave 7 Comments

Re-opening into uncertainty, dangers, lessons and lies: what will *you* do?

It’s happening: we’re coming out of our caves, and life is not like it was when we went in, back in March. There are new dangers and much uncertainty, even as science is bringing rapid new knowledge (amid overblown headlines). And there are liars fouling the air. What to do?

I posted this on Facebook the other day:

[Read more…]

Filed Under: Coronavirus Tagged With: coronavirus, covid-19, memorial day, social distancing 7 Comments

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