Facilities with PPE shortages had an additional 14.81 cases per 100 residents.
Study suggests medical masks may offer similar protecion as N95 respirators, but experts say hold on.
Public health professionals use some terms imprecisely, others incorrectly, and still others technically accurate but almost sure to be misunderstood by the public.
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The "duckbill" N95 stopped 98% of the virus that causes COVID-19, the authors say.
The pandemic emergency classification represents a higher level of alarm that builds on existing IHR mechanisms.
Early oral antiviral drug administration was associated with a 23% reduction in long COVID overall.
Unflagged vaccine-skeptical content cut vaccination intent by 2.28 percentage points per user, versus −0.05 percentage points for flagged content.
Protection against infection 4 weeks after vaccination was 52%, and against COVID-related hospital illness it was 67%.
"A brief, seemingly innocuous or benign encounter with the virus can still lead to health problems years later," one study author says.
In healthy children with no comorbidities, the absolute risk of critical disease from COVID-19 was 4%.
Breast cancer screening tanked and then rebounded in the first pandemic months, while cancer treatment disruptions varied by race, age, and wave.
Pregnant women had an incidence of PASC of 25.5% compared to 33.9% non-pregnant women.
The risk of developing post-acute respiratory conditions was highest in the first 3 months after COVID-19 infection but was still elevated after 6 months.