Vaccinated patients also had a 47% lower risk of hospitalization for heart failure and a 13% reduced risk of infection over 6 months.
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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Lab studies point to lower protection against the variant first identified in South Africa.
A single high dose did not affect hospital and ICU stay or the need for a ventilator.
Elsewhere, the WHO launches a plan to battle COVID-19 in 2021; it needs $2 billion to meet its 6 goals.
Also, the White House says it will spend $650 million to expand testing for schools and congregate settings.
An analysis by Canadian researchers suggests that a single dose of the Pfizer-BioNTech COVID-19 vaccine is highly efficacious, according to a letter published yesterday in the New England Journal of Medicine (NEJM).
"For months the scientific evidence has been clear: Aerosol transmissions are a major way this virus spreads."
The authors conclude that pregnant women should be broadly prioritized for COVID-19 vaccine allocation.
The B117 variant has now been detected in 94 countries, with local transmission occurring in 47.
Almost one in five meat processing workers in Nebraska contracted COVID-19 from April to July 2020, but after facility-wide mitigations and strategies were put in place, new cases appeared to decrease, according to an Emerging Infectious Diseases report yesterday. The researchers found that men and Hispanic/Latinos showed the highest burden in case numbers and severity.
South Africa officials say they'll share AstraZeneca-Oxford vaccine with other African nations.