BLACKBURN with Darwen health bosses are calling on those at greatest risk from flu to get a free jab.

Flu is a highly contagious infection that anyone can catch, and it can be a really serious illness for some.

Those at greater risk include people of all ages with a health condition such as severe asthma, chest or heart complaints and diabetes, pregnant women, heathcare workers, and parents of children aged two to four years old.

Since 2013, two and three-year-olds have been offered a nasal spray vaccine to protect them against flu and this year the spray is also being offered to four-year-olds.