Nasal vaccines could stop pandemics before they begin

TL;DR - Nature highlights nasal vaccines designed to trigger immunity at the respiratory tract’s entry point. This approach could prevent both illness and onward transmission, potentially helping contain outbreaks before they become pandemics.

• Nasal delivery aims to stimulate mucosal immunity where many pathogens first enter the body.
• Local immune protection could stop infection before it causes symptomatic disease.
• Preventing infection at the entry site might also reduce person-to-person spread.
• The provided excerpt does not include clinical results, efficacy estimates, or specific vaccine candidates.