From some countries, yes. As lockdown restrictions ease, the government has announced a new traffic light system for reopening international travel to and from England.1 From 17 May, travellers 12 countries deemed be of lowest risk—including Australia, Israel, Portugal—will now given green return England without needing quarantine. Most are still amber, highest risk red. The advice remains no...

Not in the UK (yet), although you may be eligible for a third dose. A booster is given to people who have received full vaccine course and developed good response. That immune response often wanes over time, so doses are “boost” previous levels. Third being immunocompromised such that their was likely been lower. Immune systems can …