XBB.1.5 updated COVID vaccine booster offers 54% increased protection against symptomatic infection

Early estimates show the 2023-24 updated monovalent XBB.1.5 COVID-19 vaccine offers significant protection against symptomatic infection, with effectiveness varying by age and time since vaccination.

E-Cigarettes Tied to Heart Failure

Use of electronic nicotine products was associated with incident heart failure, a prospective study found. People who self-reported ever having used electronic cigarettes (e-cigarettes) were

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