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Sep 02, 2025 1:01 pm
All participants were given Covid rapid tests twice a week over the course of nearly two months. By the end, the incidence of Covid infections in the azelastine group was 2.2%, significantly lower than the 6.7% infection rate in the placebo group.
Azelastine also appeared to reduce rates of other symptomatic respiratory infections, in general, the study published in JAMA Internal Medicine, found.