Nasal vaccines

Nasal vaccines are a type of vaccine administered through the nose rather than by injection. They work by delivering live weakened germs or pieces of the virus that trigger the immune system to produce a response, preparing the body to fight off future infections. This method can lead to a quicker and more localized immune response in the nasal passages, where many viruses enter the body. Nasal vaccines are particularly useful for respiratory diseases, as they can enhance protection in the areas most likely to be exposed, potentially reducing overall transmission and severity of illness.