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SNF staff size is linked to COVID-19 resident outcomes: study … Statin medications may reduce severity of COVID-19, study finds … Research: Three commonly prescribed classes of drugs may lead to antibiotic-resistant infections … News report takes closer look at COVID-19 breakthrough infections … Single dose of mRNA vaccine significantly reduces risk of SARS-CoV-2 among older adults, analyses find … Dual blood thinner treatment may prevent secondary stroke