An international team of scientists has determined the precise structural changes in the spike protein of the omicron variant. Their observations explain how the virus is able to evade antibodies against previous variants ...
Jan 25, 2022
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Omicron has raced ahead of other variants and is now the dominant version of the coronavirus in the U.S., accounting for 73% of new infections last week, federal health officials said Monday.
Dec 21, 2021
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(HealthDay)—The effectiveness of two doses of BNT162b2 was maintained, albeit at a reduced level, during an omicron variant proxy period in South Africa, according to a letter to the editor published online Dec. 29 in the ...
Jan 3, 2022
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The Biden administration said Thursday that the COVID-19 public health emergency will continue through Jan. 11 as officials brace for a spike in cases this winter.
Oct 13, 2022
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Booster vaccinations (third and fourth vaccinations) of COVID-19 mRNA vaccines that are not adapted to omicron variants do lead to higher blood levels of neutralizing antibodies against the omicron subvariants. However, these ...
Jul 20, 2023
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The total magnitude of the T-cell responses induced by mRNA and inactivated SARS-CoV-2 vaccines are comparable; however, the similarity ends here, according to a new study led by Duke-NUS Medical School scientists.
Oct 31, 2022
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School policies that require students with COVID-19 to stay out of the classroom for five days are more than sufficient. That's because children infected with the omicron variant remained infectious for a median time of three ...
Oct 23, 2023
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Omicron is mutating in giant leaps, with scientists racing to keep up. Its diversity is challenging vaccine efficacy and complicating treatment. But this fall, broad spectrum bivalent vaccines may help mitigate the seemingly ...
Jul 20, 2022
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The World Health Organization said Friday it had not seen any reports of deaths relating to the new Omicron variant of Covid-19.
Dec 3, 2021
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Vaccines have played a major role in mitigating the harms of the COVID pandemic since their rollout began just over two years ago. They're estimated to have saved tens of millions of lives across the globe.
Jan 11, 2023
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