Analysis

Study links blood clots to brain fog after Covid

A recent UK study suggests that blood clots in the brain or lungs may explain some of the common symptoms experienced by people with "long Covid", including brain fog and fatigue. The study, which included 1,837 people admitted to hospital due to Covid, found that two blood proteins, fibrinogen and D-dimer, were associated with cognitive problems. It is estimated that 16% of these patients experience difficulties with thinking, concentrating, or remembering for at least six months.

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Explainer: Do I need to worry about COVID again? New data from scientists and vaccine makers Moderna and Pfizer /BioNTech suggests that a newer, highly mutated variant of the virus that causes COVID-19 is not as alarming as some experts had feared when it was first detected several weeks ago. Deena Beasley,Julie Steenhuysen Reuters

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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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Fauci presented with study challenging effectiveness of masks

In a recent interview on CNN, Dr. Anthony Fauci, the director of the National Institute of Allergy and Infectious Diseases, responded to a study that raised doubts about the effectiveness of face masks in curbing the spread of COVID-19. The study in question was released by The Cochrane Institute and received attention earlier this year when it suggested that face masks made little to no difference in preventing the spread of the virus. This led to headlines claiming that masks don't work.

However, Fauci emphasized that there are other studies that show the advantages of wearing masks, particularly at the individual level. ...

ALSO SEE: Fauci ‘concerned’ people won’t mask up again as COVID cases, hospitalizations, and deaths continue to rise in the U.S.

AND:  Link to CNN interview