Health rounds: Moderna combo flu/COVID vaccine succeeds in mid-stage trial

(This is an excerpt of the Health Rounds newsletter, where we present latest medical studies on Tuesdays and Thursdays.) Feb 18 (Reuters) - A two-in-one mRNA vaccine developed by Moderna that targets seasonal influenza and COVID-19 produced robust and durable immune responses without safety concerns in a small mid-stage trial, the company reported. The experimental vaccine simultaneously