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In this week’s COVID-19 news, scientists have tested how well various face coverings, including the gaiters on the neck, block breathing splashes coming from the wearer’s mouth and nose, and authorities say SARS on frozen wings. -Detecting CoV-2 genetic material, researchers say the nasal sprays they say can block viral infections. However, these headings did not appear in Medscape. This is the reason.
Gaiters
Researchers at Duke University have developed a method to test the number of respiratory droplets a person emits while covering his face. This method used a laser, prism, box, and smartphone camera. they explained Results of testing 14 different facial covers in settings and journals Scientific progress.. The author has written a specific test that “should only serve as a demonstration”. This is because, due to differences in factors such as physiology, mask suitability, and head position, it is expected that different people will have different results even when wearing the same mask. And voice pattern.
But it is not Headline I talked about this study. Many media outlets have highlighted one of the tested face covers, the neck fleece or gaiters. In the researcher’s test, the error bar overlaps in the figure showing the number of droplets emitted in the test, but when wearing this cover, the speaker is a little less than when not wearing the face cover. It seems to have ejected many droplets.
The researchers’ general point that the gaiters generally require a lot of extrapolation to make claims about gaiters from the single test described in this study, and that the effectiveness of face-covering is different Has been proven to. I mentioned this study-and Debate Around it-our days COVID-19 UpdateBut the discovery wasn’t new, so we didn’t tell the full story about it.
Chicken wings
According to local authorities, genetic material for SARS-CoV-2 was detected on the surface of frozen chicken wings imported from Brazil to China. CNN Report The test did not assess whether the virus was infectious. Health officials tracked people who might have come in contact with the frozen wings, but none were positive for the virus.
This chicken report is not the first of the SARS-CoV-2 genetic material apparently found in frozen foods, and does not change the overall balance of evidence about how COVID-19 spreads .. Who is infected? We didn’t think this story was a priority for our readers.
Antiviral nasal spray
so Preprint How Nanobodies, including antibodies, that bind to a portion of SARS-CoV-2 that interacts with cell receptors and infects cells, posted to bioRxiv.org, a scientist at the University of California at San Francisco. I will explain how it was developed. They reported that their designed Nanobodies were “extraordinarily potent” in neutralizing SARS-CoV-2 in vitro, delivering aerosolized via a nasal spray or nebulizer. I can.
“These properties could allow this powerful neutralizing agent to be delivered directly to the respiratory epithelium via aerosol, and could be widely deployed and patient-friendly to stop the worst pandemic of the century. “It’s a promise to produce preventative and/or early-stage treatments,” the researchers write. ..
We hope so, but there is a long way to go. We didn’t cover this because we don’t want to exaggerate treatments that may not yet be tested in animal models. In clinical trials, journals before leaving the lab or before being peer-reviewed in scientific papers.
Ellie Kincaid is Medscape’s associate editor. She previously wrote about Forbes Healthcare, The Wall Street Journal and Nature Medicine. You can contact her [email protected] Or on Twitter Yuuki..
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