The Government is injecting millions into the flu vaccination programme on the condition NHS trusts prove at least 75% of their staff have been immunised against the disease.
Two pots of £250 million have been set aside to fund the programme this year and in 2014.
However, health secretary Jeremy Hunt said NHS trusts would only have access to the funds when they could prove 75% of their workforce had already been immunised against the flu.
More top news
Students at a university in Singapore were warned to be alert after a king cobra and a python were photographed mid-fight on the campus.
The picture, which ITV News has chosen not to publish, shows the young boy, lying motionless on Bodrum beach in Turkey.
A teenager posing for selfies with a gun has died after the weapon reportedly went off.