He was questioned by MPs about the lack of data for delaying a second dose of the Pfizer vaccine, which had a dose interval of three weeks in its clinical trials. Some NHS patients and international scientists have expressed concern at the UK’s decision to delay a second dose by up to three months. “I really understand the disappointment that people have not getting their second dose. The decision to delay a second dose of the Pfizer jab was more controversial. He told MPs: “With the Pfizer vaccine that we don’t have the same level of evidence because those studies of looking at the delayed second dose haven’t been done.

Source: Daily Mirror February 09, 2021 16:10 UTC