Nasal COVID-19 Vaccine Shows Promise in Preventing Virus Transmission

New research indicates nasal vaccines may outperform traditional shots in halting the spread of respiratory infections.

Animal studies reveal nasal vaccines significantly reduce virus levels in the upper airways.
Hamsters vaccinated nasally did not transmit the virus to others, unlike those given injections.
The nasal vaccine used in the study is already approved in India and under development in the US.
Traditional injectable vaccines are less effective in limiting virus spread despite reducing severe illness.
Researchers anticipate further advancements in mucosal vaccines for respiratory diseases.