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A way of creating more effective vaccines which could protect against a broad range of flu viruses has been reported by US researchers.
A different seasonal flu jab is produced every year as the virus is a constantly shifting target.
This animal study, published in the journal Nature, showed a single jab could protect against multiple strains.
Flu scientists said it was an important advance, but a vaccine which could defeat all flu was a long way off.
While there are different strains of flu circulating each year, there are bits of the flu virus which do not change.
Many groups of researchers believe that targeting these weak spots could lead to a single, universal flu vaccine.
http://www.bbc.co.uk/news/health-22623682
A different seasonal flu jab is produced every year as the virus is a constantly shifting target.
This animal study, published in the journal Nature, showed a single jab could protect against multiple strains.
Flu scientists said it was an important advance, but a vaccine which could defeat all flu was a long way off.
While there are different strains of flu circulating each year, there are bits of the flu virus which do not change.
Many groups of researchers believe that targeting these weak spots could lead to a single, universal flu vaccine.
http://www.bbc.co.uk/news/health-22623682