VALLETTA, April 11 (Xinhua) -- Malta has begun vaccinating around 4,000 elderly people in retirement homes with a second booster dose, Health Minister Chris Fearne said on Monday.
The island country's health authorities were also inviting some 17,000 people aged over 80 who live in the community to get the booster dose, as well as around 6,000 people who are immunocompromised.
