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Risk of long Covid declined over course of pandemic
Drop attributed mostly to vaccination but remaining risk still significant
To do this, Al-Aly and his team analyzed millions of de-identified medical records in a database maintained by the U.S. Department of Veterans Affairs, the nation’s largest integrated health-care system. “You can see a clear and significant difference in risk during the delta and omicron eras between the vaccinated and unvaccinated,” said Al-Aly, who is also director of the Clinical Epidemiology Center at the VA St. Louis Health Care System and head of the research and development service. Since the pandemic’s beginning, Ziyad Al-Aly, MD, a clinical epidemiologist at Washington University School of Medicine in St. Louis, has dedicated himself to analyzing long COVID with the aim of helping the public make informed health choices and educating scientists and policymakers on prevention and treatment.
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