Single vaccine could protect against colds, coughs and flu

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Single vaccine could protect against colds, coughs and flu

Scientists in the United States say they have moved closer to developing a universal vaccine for cold, flu, Covid and allergies.

Experts connected to Stanford University claim it could be given as a nasal spray to protect against respiratory viruses, bacteria and allergy triggers.

Although the study was in mice, if translated into humans, it could replace multiple jabs.

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Date: February 20, 2026