Sanofi, Merck’s Vaxelis is first six-in-one vaccine in USSanofi and Merck & Co picked up late 2018 approval from the FDA during the holiday period, getting Share XSanofi, Merck’s Vaxelis is first six-in-one vaccine in UShttps://pharmaphorum.com/news/sanofi-mercks-vaxelis-is-first-six-in-one-vaccine-in-us/