Covid-19 vaccination because of concerns about blood clots that so far have affected a tiny proportion of those receiving shots, a person familiar with the matter said.The decision following a recommendation by the Joint Committee on Vaccination and Immunisation may be announced as soon as Friday, according to the person.
The precautionary measure comes just as authorities prepare to open up the inoculation program to the under 40s, after the over 40s where invited to book their first shots this week.The AstraZeneca vaccine has been the workhorse of the UK program to date, and the new strategy means that where supplies permit, people aged under 40 will be offered vaccines by Pfizer-BioNtech or Moderna Inc.