Ahead of the roll-out of Pfizer's Covid-19 vaccine, we have answered important questions explaining how one gets a jab, who it's administered by and how long it lasts. Vaccine staff will be working on Christmas Day. The Pfizer vaccine has been trialled on more than 43,000 people across six countries. The Pfizer vaccine has been tested on 43,500 people in six countries and no safety concerns were raised. Immunity starts to build following the first vaccine, but second one is required to give full protection from Covid-19.

Source: Daily Mail December 06, 2020 08:37 UTC