JOHANNESBURG - The omicron variant appears to cause less severe disease than previous versions of the coronavirus, and the Pfizer vaccine seems to offer less defense against infection from it but ...
COVID-19 boosters add about 70 percent extra protection against omicron, which lasts four to five months, a study published Sept. 23 in the Journal of the American Medical Association found. Renton, ...
Postacute sequelae of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection (PASC) can affect many organ systems. However, temporal changes during the coronavirus disease 2019 ...
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