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The relationship between vaccine status at the time of infection and vaccine effectiveness against fatal COVID-19.
Reporting rules that assign COVID-19 deaths to a case using either the positive test (specimen) date or the death date materially change apparent mortality trends by vaccination status because they de...
A practical window for monitoring abnormal laboratory values after depends on the type of test and the clinical question: immediate physiologic changes typically normalize within days, are most often ...
No peer‑reviewed study has demonstrated that causally increase cancer incidence; a mix of cohort studies, case reports, surveillance signals and reviews have reported temporal associations or raised b...