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Japanese researchers say the Omicron variant survives longer on plastic and skin than other COVID-19

29-01-2022

Japanese researchers say the Omicron variant survives longer on plastic and skin than other COVID-19


 variants, one possible explanation for why Omicron has spread so rapidly around the world. In a lab experiment, samples of different variants were applied to pieces of plastic and human skin collected from autopsies. "This study showed that the Omicron variant also has the highest environmental stability among VOCs [variants of concern], which suggests that this high stability might also be one of the factors that have allowed the Omicron variant to replace the Delta variant and spread rapidly," the researchers write. On plastic, the Omicron variant samples survived an average of 193.5 hours, a little more than 8 days. By comparison, the other survival times on plastic were 56 hours for the original COVID strain, 191.3 hours for Alpha, 156.6 hours for Beta, 59.3 hours for Gamma, and 114 hours for Delta. The study found that the variants had more resistance to ethanol than the original strain of COVID. That said, all COVID samples were inactivated after being exposed to alcohol-based hand sanitizers for 15 seconds. "Therefore, it is highly recommended that current infection control (hand hygiene) practices use disinfectants ... as proposed by the World Health Organization," the researchers write.

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