Significant update from CDC states mask use protects not only others but the wearer: "Masks also help reduce inhalation of these droplets by the wearer (“filtration for personal protection”)." 1/n

Coronavirus Disease 2019 (COVID-19) cdc.gov/coronavirus/20… via @CDCgov
"The community benefit of masking for SARS-CoV-2 control is due to the combination of these effects; individual prevention benefit increases with increasing numbers of people using masks consistently and correctly." 2/2
Masks should be well made & fit well (snug w/out gaps) "Multiple layers of cloth with higher thread counts have demonstrated superior performance compared to single layers of cloth with lower thread counts, in some cases filtering nearly 50% of fine particles less than 1 micron."
IMPORTANT CAVEAT! Masks do not complete/reliable protection & MUST be part of a layered strategy with limiting number, duration & proximity of contacts with others, avoiding poorly ventilated spaces/improving ventilation, hand hygiene, etc.

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More from @DocJeffD

11 Nov
I'm worried about the direction our COIVD-19 outbreak is heading and the increasing impact on the health of our community, our healthcare system and our economy. COVID-19 is a viral wildfire, and we are the fuel. kingcounty.gov/depts/health/c…
1/n
The pandemic fatigue that we’re all experiencing is real. I’m certainly feeling it and I want this outbreak to end yesterday. I also understand that it’s hard to make sacrifices when things may seem OK in your own personal circles. 2/n
Everywhere we gather, especially indoors – at work or socially, in groups for any purpose – recreation, worship, dining, social event or party – poses a risk for spreading COVID-19 = stepped up precautions are needed. Let’s not throw more human logs on the fire. 3/n
Read 9 tweets
15 Jul
@CT_Bergstrom @CDCgov A few quick thoughts: In an ideal world, testing everyone at colleges & universities might make sense (depending whether the result lead to meaningful actions that decrease disease and if frequently enough...@DrTomFrieden 1/n
@CT_Bergstrom @CDCgov @DrTomFrieden 2/n...since one-time screening will miss both incubating and subsequent infections, and if testing capacity is adequate. In the real word, is screening millions of US college students possible currently? Do we rescreen after breaks?
@CT_Bergstrom @CDCgov @DrTomFrieden 3/n What level of community transmission makes this unlikely to provide significant benefit? Most communities across the US currently don't have enough testing capacity to meet ongoing community disease control needs.
Read 7 tweets
23 May
What can you do to keep COVID-19 cases as low as possible & stay healthy even if your community is "getting back to business?"
- Remember COVID-19 can spread BEFORE symptoms appear.
- Continue to avoid non-essential close contact with others to the extent possible.
1/n
- Maintain physical distance when out of the home & limit the size of gatherings.
- Understand that poorly-ventilated, enclosed spaces are higher risk than well-ventilated or outdoor spaces.
2/n
- Longer contact with others is higher risk than shorter contact, even when distancing is possible.
- Contact with more people is higher risk than with few people.
- Avoid contact with ill people.
- Wear a cloth mask or face covering in public.
3/n
Read 5 tweets

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