Sweden

Mpox vaccine boosters necessary to restore faded protection, study shows - UPI.com Vaccine protection against mpox fades quickly in the human immune system, even in people who've received the full two-dose regimen, a new real-world study shows. UPI

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Antibody levels fell to low or near zero within the first few months of getting the vaccine, unless the person had previously received a smallpox vaccine, scientists reported Saturday at the European Congress of Clinical Microbiology and Infectious Diseases in Barcelona.

COVID-19 may raise risk of developing atrial fibrillation - UPI.com Add another post-COVID hazard to the list: Research suggests having the illness could raise risks for dangerous irregular heart beats. UPI

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Study: Hospital-based COVID-19 less serious after Omicron Wavebreakmedia/ iStock CIDRAP

Hospital-acquired (nosocomial) COVID-19 transmission was associated with higher rates of 30-day mortality and more severe disease during the early phases of the pandemic, but the risk has lessened in the post-Omicron landscape, according to a new study from JAMA Network Open based on outcomes seen in Sweden during the past 3 years.

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More COVID-19 studies suggest BA.2.86 may be less immune-evasive than feared iLexx / iStock CIDRAP

Two more lab groups—one from Sweden's Karolinska Institute and the other from Harvard University—have reported results of antibody neutralization lab experiments, which suggest vaccination or previous infection offer some protection against the highly mutated BA.2.86 SARS-CoV-2 variant.

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