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New Airflow Videos Show Why Masks With Exhalation Valves Do Not Slow the Spread of COVID-19New Airflow Videos Show Why Masks With Exhalation Valves Do Not Slow the Spread of COVID-19

Many people wear masks in public to slow the spread of COVID-19, as recommended by the Centers for Disease Control and Prevention (CDC). However, masks with exhalation valves do not slow the spread of the disease, and now, new videos from the National Institute of Standards and Technology (NIST) show why. 

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Can a nose-full of chicken antibodies ward off coronavirus infections?

While the world waits for a widely available, safe, and effective COVID-19 vaccine, scientists are becoming ever more creative in their search for other ways to protect people from the disease. Now, a clinical trial has begun in Australia to find out whether nasal drops that contain chicken antibodies to SARS-CoV-2 can offer temporary protection.

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Brazil Halts Chinese Vaccine Trial, Critics See Politics

Brazil halted a late-stage trial of a Chinese vaccine on Monday that had been considered a global front-runner in the race to develop a protective shot for the coronavirus after a “serious adverse” reaction in a participant.

The decision provoked a political firestorm on Tuesday after President Jair Bolsonaro, who has been critical of China and spoken dismissively of its vaccine, CoronaVac, called the suspension a political victory.

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Recordings reveal WHO's analysis of pandemic in private

GENEVA (AP) — As the coronavirus explodes again, the World Health Organization finds itself both under intense pressure to reform and holding out hope that U.S. President-elect Joe Biden will reverse a decision by Washington to leave the health agency.

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