Britain Postponing Second Dose of Corona Vaccine

The British government has recommended giving a second dose of the vaccine with a gap of 12 weeks instead of two weeks, in an effort to give more people a first dose and some initial protection against Covid-19.

Accordingly, BioNTech and Pfizer responded to the decision, saying that there is no evidence that their vaccine will continue to protect against corona if the second injection is given more than 21 days after the initial dose.

Britain is among the first countries in the world to launch a large-scale vaccination campaign against the Corona virus after the approval of the Covid-19 vaccine developed by Pfizer and BioNTech in early December.

Since both vaccines require two doses per person, the UK initially said that a second dose will be given either three or four weeks after the first dose, depending on which vaccine is given and in line with the dosing regimens that have been tested in clinical trials.

An analysis of final data from clinical trials of Pfizer and BioNTech showed that the vaccine was 95% effective in preventing Corona seven days after the second dose was given.