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Nasal Spray Vaccine Could Revolutionize Respiratory Disease Prevention

3/4/2026

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Summary

Story summary

Researchers developed a nasal spray vaccine that protects mice against multiple respiratory pathogens, including COVID-19 and influenza.
The study, published in Science on February 19, 2026, shows the vaccine enhances the innate immune system and provides protection against various viruses and bacteria for at least three months and could revolutionize how respiratory diseases are prevented.
It also reduces responses to respiratory allergens.

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Story summary

Researchers developed a nasal spray vaccine that protects mice against multiple respiratory pathogens, including COVID-19 and influenza.
The study, published in Science on February 19, 2026, shows the vaccine enhances the innate immune system and provides protection against various viruses and bacteria for at least three months and could revolutionize how respiratory diseases are prevented.
It also reduces responses to respiratory allergens.