About 7.5% of U.S. adults—roughly 20 million people—are currently living with Long COVID symptoms, according to new federal data from the National Center for Health Statistics (NCHS).
Waning vaccine-immunity and an increased incidence of COVID-19 during the Omicron outbreak led the Israeli Ministry of Health to recommend a fourth dose of BNT162b2 for high-risk individuals. This study assessed the effect of that dose for hospitalized patients with severe/critical, breakthrough COVID-19. ...
Among hospitalized patients with severe/critical breakthrough COVID-19, a recent fourth dose was associated with significant protection against mechanical ventilation or death, compared to three doses.
Medical professionals and researchers have been studying the link between COVID-19 and vascular symptoms since the beginning of the pandemic. They have learned that people with severe COVID-19 are at a risk of strokes, blood clots, and other vascular complications.
These observations led to several hypotheses that COVID-19 was a vascular disease with respiratory symptoms and not a respiratory disease.
Clinical epidemiologist Ziyad Al-Aly has access to a treasure trove that many researchers can only dream of: millions of sets of electronic medical records from the US Department of Veterans Affairs (VA), which provides health care for the country’s military veterans.
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