Seven days in medicine: 7-13 June 2023

Covid-19mRNA vaccines are safe for children, study findsNo indication of myocarditis was seen from 245 000 doses of the mRNA covid-19 vaccines given to young children, mostly under 5 years old, showed US research published in Pediatrics.1 The study, conducted by Kaiser Permanente in partnership with the US Centers for Disease Control and Prevention, looked at the Pfizer-BioNTech and Moderna vaccines. “Parents can be assured that this large study found no serious side effects from the mRNA vaccines,” said Nicola Klein, senior author.Metformin may reduce long covid riskMetformin—a cheap, safe, and widely available diabetes drug—could reduce the incidence of long covid if given during the acute phase, a study in Lancet Infectious Diseases found. When compared with people who had taken a placebo, a two week course given within three days of testing positive for SARS-CoV-2 led to 40% fewer long covid diagnoses over a 10 month study period. However,…
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