China and India have approved nasal vaccines for use as a booster dose, but the availability of nasal vaccines in the United States and Europe may be years away.
Nasal COVID-19 vaccines help the body prepare for infection right where it starts – in your nose and throat stgeorgeutah.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from stgeorgeutah.com Daily Mail and Mail on Sunday newspapers.
A China-developed intranasal vaccine against COVID-19 has shown to be safe and effective in early-stage human trials, according to a new study published in the journal The Lancet Respiratory Medicine.