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Hospital-based Covid-19 transmissions became less serious after Omicron--study

 

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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Long COVID: How it disrupts the brain --pain, fatigue, fuzzy thinking

 

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The brain may be especially vulnerable to COVID because the disease appears to weaken the blood-brain barrier, which usually protects the organ from both germs and the immune cells that follow them.

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Prenatal vaccination, not before pregnancy, protects infants from COVID--study

Infants as old as 6 months were protected from COVID-19 infections only when mothers were vaccinated prenatally, and not before pregnancy, according to a new study in JAMA Network Open.

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