Early signs suggest the UK strategy of delaying the second Covid-19 jab was the right decision, a top Government vaccine adviser has said.
Professor Anthony Harnden, deputy chairman of the Joint Committee on Vaccination and Immunisation (JCVI), said he is "absolutely convinced" that it will turn out to have been the right move.
Other medical professionals have criticised the delay, and the World Health Organisation (WHO) has said the second dose of the Pfizer/BioNTech jab should only be delayed for up to six weeks.
But experts in the UK said that the second jab can be delayed for up to 12 weeks in a bid to get more people vaccinated sooner.