Scientists have found a "blueprint" for a universal flu vaccine, according to the leader of a research project into influenza, said Professor Lalvan:
Our findings suggest that by making the body produce more of this specific type of CD8 T cell, you can protect people against symptomatic illness. This provides the blueprint for developing a universal flu vaccine.
We already know how to stimulate the immune system to make CD8 T cells by vaccination.
Now that we know these T cells may protect, we can design a vaccine to prevent people getting symptoms and transmitting infection to others.
This could curb seasonal flu annually and protect people against future pandemics.
More top news
The Crown Prosecution Service is to announce its decision later on whether individuals and organisations will face criminal charges.
Hollywood actor Jim Carrey has failed in his attempt to get a wrongful death lawsuit over his ex-girlfriend's suicide thrown out of court.
Talks at Stormont aimed at restoring power-sharing have adjourned with little sign of the DUP and Sinn Fein reaching an agreement.