“A single-shot vaccine against flu that would provide a lifetime of protection even against future mutations could be available in ‘five years or less’, scientists have said after making a breakthrough.

The researchers created a vaccine to target a 106-year-old strain of Spanish influenza that killed millions in 1918 and 1919 after the First World War.

They found that the vaccine was also effective against a strain of bird flu from the 21st century, providing protection despite the virus having undergone almost a century of evolution.”

From The Times.