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Poorly circulated room air raises potential exposure to COVID contaminants

Sep 26, 2021 | , ,

Using CO2 as a tracer to track small respiratory aerosols that travel by air currents in a room, the Berkeley Lab team found that when overhead vents (or diffusers) are supplying heated air, it created thermally stratified conditions that block the flow of clean air down to the “breathing zone” in the middle height of the room.

As a result, even when people are sitting more than 6 feet from each other, some occupants may be exposed to respiratory aerosols from others at a rate 5 to 6 times higher than if the same room were well mixed.

COVID-19 vaccinated pregnant women pass protection to newborns: Study

Sep 26, 2021 | , ,

“Studies continue to reinforce the importance of vaccines during pregnancy and their power to protect two lives at once by preventing severe illness in both mothers and babies,” said Ashley S. Roman, MD, director of the Division of Maternal-Fetal Medicine and the Silverman Professor of Obstetrics and Gynecology in the Department of Obstetrics and Gynecology at NYU Langone Health, and one of the study’s principal investigators.

Of 610,000 cancers reported in 2012-19, 7.9% were childhood cases: Report

Sep 26, 2021 | , ,

The highest proportion of cancer from all sites were reported in the age group 45 to 64 years, except for prostate cancer, which was higher in those over 65. Over 90 per cent of the cancers in different organ sites got diagnosed by microscopic examination, the report said.

Among all the cancers, the highest proportion of distant metastasis at presentation was seen in patients with lung cancer (49.2 per cent males and 55.5 per cent females), followed by gall bladder cancer (40.9 per cent males and 45.7 per cent females) and prostate cancer (42.9 per cent).
The highest proportion of cancer from all sites were reported in the age group 45 to 64 years, except for prostate cancer, which was higher in those over 65. Over 90 per cent of the cancers in different organ sites got diagnosed by microscopic examination, the report said.

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