Covid: ‘Encouraging’ antibody boost after Pfizer and AZ vaccines
Both vaccines had similar, reassuring effects on the body's defences in over-80s after one dose.
Author Archives: BBC News - Health
AstraZeneca vaccine: Denmark stops rollout completely
It is the first European country to fully withdraw the jab over possible links to rare blood clots.
‘Mix and match’ UK Covid vaccine trial expanded
Using different shots for the first and second doses might give better protection, say experts.