The U.S. new cases 7-day rolling average are 14.2 % LOWER than the 7-day rolling average one week ago. U.S. hospitalizations due to COVID-19 are now 13.8 %
LOWER than the rolling average one week ago. U.S. deaths due to coronavirus are now 18.8 %
LOWER than the rolling average one week ago. Today s posts include:
U.S. Coronavirus New Cases are 50,237
U.S. Coronavirus hospitalizations are at 40,212 (not updated today)
U.S. Coronavirus deaths are at 719
U.S. Coronavirus immunizations have been administered to 27.0 % of the population
The 7-day rolling average rate of growth of the pandemic shows new cases improved, hospitalizations improved, and deaths improved. The best monitoring tool, hospitalizations, has been showing continuous improvement.
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Study Indicates That Humidity in Breath Makes Cotton Masks More Effective at Slowing Spread of COVID-19 A swatch of cotton fabric that has been exposed to high humidity typical of a person’s exhaled breath (left) filters out more droplets than a swatch of cotton fabric that has not been exposed to high humidity (right). Credit: NIST
Researchers have come up with a better way to test which fabrics work best for masks that are meant to slow the spread of COVID-19. By testing those fabrics under conditions that mimic the humidity of a person’s breath, the researchers have obtained measurements that more accurately reflect how the fabrics perform when worn by a living, breathing person.
Researchers have come up with a better way to test which fabrics work best for masks that are meant to slow the spread of COVID-19. By testing those fabrics under conditions that mimic the humidity of a person s breath, the researchers have obtained measurements that more accurately reflect how the fabrics perform when worn by a living, breathing person.
The new measurements show that under humid conditions, the filtration efficiency increased by an average of 33% in cotton fabrics.
A swatch of cotton fabric that has been exposed to high humidity typical of a person’s exhaled breath (left) filters out more droplets than a swatch of cotton fabric that has not been exposed to high humidity (right). Credit: NIST
Researchers have come up with a better way to test which fabrics work best for masks that are meant to slow the spread of COVID-19. By testing those fabrics under conditions that mimic the humidity of a person’s breath, the researchers have obtained measurements that more accurately reflect how the fabrics perform when worn by a living, breathing person.