Drugmakers Push Back on U.K. Plan to Stretch Out Vaccine Doses

Global drugmakers added to doubts raised about Britain’s strategy for giving Covid-19 vaccines to as many people as possible in the shortest amount of time.

Industry groups representing pharmaceutical companies in the U.S. and Europe on Wednesday joined the top medicines regulators in both markets in questioning any moves to alter the timing or dosage of Covid-19 shots in a bid to stretch supplies.