Researchers have discovered that a virus commonly found in dogs may lead to a breakthrough in human vaccine development.

Parainfluenza virus 5, or PIV5, is harmless to humans but is thought to contribute to upper respiratory infections in dogs, and is a common target for canine vaccines designed to prevent kennel cough. In a new paper, researchers describe how this virus could be used in humans to protect against diseases that have eluded vaccine efforts so far.

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