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reader comments 65 with 52 posters participating Share this story The swift rise of omicron subvariant BA.5—with its increased immune-evading abilities and demonstrable growth advantage—has federal officials on edge. In a flurry of activity late Monday and early Tuesday, officials doubled down on pandemic measures, renewed calls for vigilance, and are considering expanding eligibility of ..

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Enlarge / A person holds a positive SARS-CoV-2 rapid test on February 17, 2022 in Berlin, Germany. reader comments 97 with 57 posters participating Share this story Omicron subvariant BA.2.12.1 has overtaken BA.2 as the dominant version of the pandemic coronavirus in the US, now accounting for an estimated 59 percent of cases nationwide. But ..

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Enlarge / The Comirnaty (Pfizer/BioNTech) and Moderna COVID-19 vaccines. reader comments 67 with 50 posters participating Share this story Covid-19 Coverage View more stories People ages 60 and older who were initially vaccinated with two Pfizer-BioNTech COVID-19 vaccine doses were better protected from the omicron coronavirus variant after being boosted with a Moderna vaccine rather ..

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Enlarge / People watch a television broadcast showing a file image of North Korean leader Kim Jong Un during a military parade at the Seoul Railway Station on May 4, 2022 in Seoul, South Korea. reader comments 89 with 53 posters participating Share this story North Korea instituted a nationwide lockdown Thursday after reporting an ..

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Enlarge / A 13-year-old celebrates getting the Pfizer-BioNTech COVID-19 vaccine in Hartford, Connecticut, on May 13, 2021. reader comments 255 with 123 posters participating Share this story Covid-19 Coverage View more stories So-called “natural immunity” against COVID-19 has always been a dodgy argument for avoiding vaccination during the pandemic. But amid omicron, natural immunity is ..

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Enlarge / Transmission electron micrograph of a SARS-CoV-2 virus particle isolated from a patient sample and cultivated in cell culture. reader comments 44 with 35 posters participating Share this story Covid-19 Coverage View more stories Researchers in France have reported the first compelling genetic evidence of a recombinant SARS-CoV-2 virus that contains elements of both ..

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reader comments 94 with 75 posters participating Share this story Covid-19 Coverage View more stories A sub-lineage of the omicron coronavirus variant, dubbed BA.2, continues to increase steadily around the globe as scientists and health officials are still working to understand the risk it poses to public health. So far, the overall data has been ..

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Enlarge / Vials of undiluted Pfizer COVID-19 vaccine. reader comments 53 with 33 posters participating Share this story Vaccine makers are pushing back when omicron-specific COVID-19 vaccines could be ready for use. The shots were initially expected in March. Delays in the vaccines’ development come as cases of omicron have been dropping rapidly, and several ..

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Craig Hastings | Getty Images reader comments 141 with 75 posters participating Share this story Covid-19 Coverage View more stories President Joe Biden on Tuesday issued a proclamation revoking controversial travel restrictions targeting southern Africa where the ultra-transmissible omicron coronavirus variant was first detected in late November. The travel restrictions on eight countries in southern ..

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Enlarge / Travelers wait in line to check-in at LaGuardia Airport in New York, on December 24, 2021. -On Christmas Eve, airlines, struggling with the Omicron variant of Covid-19, have canceled over 2,000 flights globally, 454 of which are domestic, into or out of the US. reader comments 145 with 73 posters participating Share this ..

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