The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that has yet to be certified by peer review.
The Omicron variant can survive longer than earlier versions of the coronavirus on plastic surfaces and human skin, Japanese researchers found in laboratory tests.Its high "environmental stability" - its ability to remain infectious - might have helped Omicron replace Delta as the dominant variant and spread rapidly, they said. On plastic surfaces, average survival times of the original strain and the Alpha, Beta, Gamma and Delta variants were 56 hours, 191.3 hours, 156.6 hours, 59.
On skin, all of the variants were completely inactivated by 15 seconds of exposure to alcohol-based hand sanitizers. "Therefore," the researchers conclude, "it is highly recommended that current infection control practices use disinfectants... as proposed by the World Health Organization."Users of rapid antigen tests to detect COVID-19 should swab their nostrils as directed by the manufacturer and not swab the throat or cheek instead, new research shows.
Earlier this month, with Omicron accounting for nearly all coronavirus infections in San Francisco, researchers there performed both PCR and Abbott Laboratories' BinaxNOW rapid antigen test on 731 people requesting COVID-19 tests. Nasal swabbing "detected over 95% of persons with the highest levels of virus who are most likely contagious," said Dr. Diane Havlir of the University of California, San Francisco. In 115 volunteers with positive PCR tests, her team compared BinaxNOW results using swab samples from the nose and the throat obtained by trained professionals.
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COVID-19 Patient at Center of Ventilator Fight Dies in TexasA unvaccinated COVID-19 patient flown from Minnesota to Texas during a legal battle over whether his ventilator should be turned off died Saturday, the family’s attorney said.
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