Dr Chaand Nagpaul, council chairman of the British Medical Association, said there are concerns about vaccine efficacy when there is a 12 week gap between the two doses of the Pfizer/BioNTech jab.
He resigned amid allegations that a group of Welsh politicians consumed alcohol on the Senedd estate days after a pub alcohol ban was enforced.
The Government’s chief scientific adviser Sir Patrick Vallance said early evidence suggested the new UK variant could increase mortality by almost a third in men in their 60s.
Pictures circulating on social media appeared to show queues of people at border patrol with no obvious social distancing.