(Reuters) – People who received their second dose of the Pfizer/BioNTech vaccine five or more months ago are more likely to test positive for COVID-19 than people who were fully vaccinated less than five months ago, new data suggest. Researchers…
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Older adults with prior SARS-CoV-2 infection benefit from two doses of Pfizer/BioNTech vaccine
Older adults living in nursing homes and long-term care facilities are at high risk of becoming infected and spreading severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to other residents. They are also at a higher risk of developing severe infections…
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SARS-CoV-2 delta variant associated with several vaccine breakthrough cases in Houston
Scientists from the United States have recently estimated the prevalence of vaccine breakthrough cases caused by the delta variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Their findings reveal that about 58% of all new coronavirus disease 2019 (COVID-19)…
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