To enhance immunity, UK to combine Pfizer, Astra shots in vaccine trials

The UK is set to begin administering doses from Pfizer and German partner BioNTech SE on Tuesday, making it the first Western country to receive a vaccine

Even as it begins the first Covid immunizations with a shot from Pfizer Inc., the U.K. plans to test it in combination with another vaccine from AstraZeneca Plc.

Studies aimed at determining whether using the two jabs together can enhance immunity are planned for next year, according to the U.K. Vaccine Taskforce. The group disclosed the plans as it published a report on its work so far, including deals for 357 million doses from seven makers and investments in three sites to expand the nation’s manufacturing capacity.

The U.K. is set to begin administering doses from Pfizer and German partner BioNTech SE