Omicron may not be the final variant, but it may be the final variant of concern

It is controversial whether viruses are alive, but—like all living things—they do evolve. This fact has become abundantly clear during the pandemic, as new variants of concern have emerged every few months. Some of these variants have been better at spreading from person to person, eventually becoming dominant as they out-compete slower versions of SARS-CoV-2, the virus that causes COVID-19. […]

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Fossilized Blood Proteins From Child Illness May Cause Chalky Teeth

Researchers have identified a potential cause of molar hypomineralization (MH), or “chalky teeth,” an underrecognized condition affecting 1 in 5 children worldwide. The discovery could lead to preventive medical therapies to reduce dental caries and extractions, they said. According to a team led by biochemist Michael J. Hubbard, BDS, PhD, a professor in the Faculty of Medicine, Dentistry and Health […]

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White matter microstructure reveals developmental risk for psychosis

Brain imaging studies have shown structural and functional abnormalities in people with psychosis in the connections between the cortex and the thalamus, the major waystation for incoming sensory information and a critical regulator of cortical activity. A new study shows that those differences are not present during development, but that the integrity of the connections is compromised in youth with […]

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Pfizer vaccine associated with lower risk of SARS-CoV-2 infection and hospitalization in middle-aged adults

A new medRxiv* preprint study awaiting peer review found that the Pfizer-BioNTech vaccine was correlated with a 30% lower risk of COVID-19 infection and hospitalization than the AstraZeneca two-dose vaccines. The findings were robust for at least six months when Delta was the dominant strain, showing that there were no differences in waning immunity between both vaccines. Study: Comparative effectiveness […]

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