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Alcatraz, the infamous former island prison off San Francisco, will reopen its outdoor areas to the public next week after being closed for five months because of the pandemic.
The Omicron variant features as such for the first time in the overview of WHO's weekly operational update, namely "Supporting Omicron variant detection and COVID-19 response in southern Africa." As of 2 December, Botswana and South Africa have reported 19 and 172 Omicron variant cases, respectively, accounting for 62% of global cases.
After nearly two months of lab studies and real-world observations, experts have a much clearer picture of what Omicron is — and isn’t — capable of.
SARS-CoV-2 is the seventh known coronavirus to infect people, after 229E, NL63, OC43, HKU1, MERS-CoV, and the original SARS-CoV. [105] Like the SARS-related coronavirus implicated in the 2003 SARS outbreak, SARS‑CoV‑2 is a member of the subgenus Sarbecovirus (beta-CoV lineage B). [106] [107] Coronaviruses undergo frequent recombination. [108]
In May 2022, a preprint indicated Omicron subvariants BA.4 and BA.5 could cause a large share of COVID-19 reinfections, beyond the increase of reinfections caused by the Omicron lineage, even for people who were infected by Omicron BA.1 due to increases in immune evasion, especially for the unvaccinated. However, the observed escape of BA.4 and ...
The conventional wisdom is that Omicron is less likely to cause serious illness, but that might have more to do with better immunity and treatments, not the virus itself.
A number of medical experts signed the Great Barrington Declaration in October 2020 which called for "Focused Protection" on high risk groups and minimal restrictions on the general population to achieve herd immunity through COVID-19 infection. However, the majority of medical experts and the WHO have strongly criticised this proposed strategy ...
Scientists have warned that a coronavirus variant like omicron, which appears able to dodge some protective antibodies generated by the vaccines, could be a major setback in the pandemic.