The definition of 'fully vaccinated' can differ across the world, and already does within the UK.
In England and Wales, you are considered fully vaccinated if you have had two jabs of a Covid-19 vaccine-like AstraZeneca, Moderna or Pfizer; or you've had the one-shot Janssen jab.
But in Scotland to qualify as fully vaccinated for the country's Covid pass scheme you must have had a booster dose if your second jab was more than four months ago, thanks to a rule change brought in on Monday January 19.
