A top an­a­lyst sees Pfiz­er and Mod­er­na seiz­ing a $38B prize as safe­ty frets side­line glob­al vac­cine play­ers

While the wrangling over the relative safety of new, virally vectored Covid vaccines from J&J and AstraZeneca appears to be unending, analysts aren’t waiting around to see how the market will play out for the leaders.