![]() “As you may know, BA.2 is called ‘stealth Omicron,’ ” Sato told CNN. Photographer: Cheney Orr/Bloomberg via Getty Images Cheney Orr/Bloomberg/Getty ImagesĬDC unveils its latest weapon in Covid-19 detection: wastewater On Thursday, officials said the technique worked and possibly prevented a sizable outbreak on campus, The Washington Post reported. The University of Arizona is regularly screening the sewage from each dorm, searching for traces of coronavirus. Kei Sato, a researcher at the University of Tokyo who conducted the study, argues that these findings prove that BA.2 should not be considered a type of Omicron and that it needs to be more closely monitored.Īn employee collects a wastewater sample from Likins Hall, a dorm where a potential outbreak of Covid-19 was thwarted the previous week through wastewater testing, at the University of Arizona in Tucson, Arizona, U.S., on Monday, Aug. It also has dozens of gene changes that are different from the original Omicron strain, making it as distinct from the most recent pandemic virus as the Alpha, Beta, Gamma and Delta variants were from each other. “We will continue to monitor emerging data on disease severity in humans and findings from papers like this conducted in laboratory settings.”īA.2 is highly mutated compared with the original Covid-causing virus that emerged in Wuhan, China. CDC continues to monitor variants that are circulating both domestically and internationally,” she said Friday. “There is no evidence that the BA.2 lineage is more severe than the BA.1 lineage. The US Centers for Disease Control and Prevention is keeping close watch on BA.2, said its director, Dr. Rhoads reviewed the study but was not involved in the research. Daniel Rhoads, section head of microbiology at the Cleveland Clinic in Ohio. “It might be, from a human’s perspective, a worse virus than BA.1 and might be able to transmit better and cause worse disease,” says Dr. Preprints allow research to be shared more quickly, but they are posted before that additional layer of review. Normally, before a study is published in medical journal, it is scrutinized by independent experts. The findings were posted Wednesday as a preprint study on the bioRxiv server, before peer review. Tom Frieden: Why I'm cautiously optimistic about Covid-19 (Photo by Al Bello/Getty Images) Al Bello/Getty Images North America/Getty Imagesĭr. The World Health Organization declared coronavirus (COVID-19) a global pandemic on March 11. Since the coronavirus pandemic people have been discarding used masks on the ground rather than dispensing them in the trash. MERRICK, NEW YORK - MARCH 31: A used mask lies outside of Pat's Farms grocery store on Main Merrick, New York. ![]()
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