Omicron Subvariants
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Omicron changed the course of the pandemic 1 year ago and still dominates. What’s next?On Nov. 24, 2021, a group of scientists in South Africa alerted the World Health Organization to a concerning new COVID-19 variant the world would come to know as Omicron.HealthNov 25, 2022
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Canada’s top doctor preparing for ‘worst-case scenario’ on COVID variantsDr. Theresa Tam says the Public Health Agency of Canada is keeping a careful eye on the evolution of Omicron variants, which are the most common subvariants in the country.HealthOct 18, 2022
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Got COVID? Here’s how long immunity might last as new variants emergeInfection-acquired immunity from catching COVID-19 can act as a protective layer for a period of time, but it wanes and is not guaranteed, experts warn.CanadaOct 11, 2022
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China urges ‘patience’ as local COVID cases soar to highest since AugustPressure on officials has risen in recent weeks as the highly transmissible Omicron sub-variants BF.7 and BA.5.1.7 appeared in mainland China for the first time.WorldOct 10, 2022
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Omicron BA.5 COVID subvariant spreading at ‘very intense level,’ WHO warnsThe WHO has seen a substantial increase in cases of the Omicron subvariant, BA.5, over the last four weeks and that trend is expected to continue.HealthJul 12, 2022
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Shanghai officials say new Omicron BA.5 subvariant found in cityThe find is highlighting the challenges China faces in trying to contain new mutations and cases under its "zero-COVID" policy, which has seen widespread continued lockdowns.HealthJul 10, 2022
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Novavax expects to produce COVID-19 vaccine targeting Omicron by fallNovavax Inc NVAX.O said on Friday it expects to provide a COVID-19 vaccine targeting Omicron in the fourth quarter.HealthJul 1, 2022
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Omicron BA.5 will account for nearly 70% of cases by Canada Day, experts predictResearchers examining the threat of emerging COVID-19 strains predict Omicron BA.5 will account for nearly 70 per cent of cases in much of the country by Canada Day.HealthJun 30, 2022
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U.S. FDA backs COVID-19 booster shots tailored to target Omicron BA.4, BA.5 subvariantsThe BA.4 and BA.5 Omicron COVID-19 subvariants are now dominant in the United States, according to data from the Cenetrs for Disease Control and Prevention.HealthJun 30, 2022
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Updated Moderna COVID-19 booster can combat Omicron subvariants, vaccine maker saysModerna's updated COVID-19 vaccine generated a strong immune response against the fast-spreading Omicron subvariants BA.4 and BA.5.HealthJun 22, 2022
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