People should ge their dose at least three weeks apart, but some countries, the Ministry of Health says. When the British Government launched its vaccination programme, the big gap between first and second doses was more a function of necessity than science. The strategy was primarily focused on getting one dose in the arm of as many citizens as possible, with the second dose coming later, when supply ramped up. That gap between doses mostly ended up being two to three months apart. “Data from clinical trials shows that the efficacy was higher when the second dose was given at, or after 12 weeks.”Only in certain specific cases is it best to give the second dose earlier, the guidance says.

Source: Stuff July 02, 2021 04:41 UTC