AstraZeneca's Covid vaccine suffers setback in nasal spray trial
Researchers have placed high hopes on nasal spray vaccines because the method is believed to potentially prevent infection as it may prompt an immune response directly in the airways.
WHO looking forward to oral, nasal Covid vaccines
Such vaccines could have advantages over the current crop as they would be easier to deliver than injections and could even be self-administered.
Vaccine nasal sprays aim to ‘shut the door’ on virus
Stimulating immunity directly in the nose lowers the risk of infecting other people, researchers say.
Now, US scientists developing nasal spray to prevent Covid-19
If successful, the technology could provide people with around six months of protection from a single dose.
Covid-coating nasal spray on the way ‘for use in crowded places’
The spray could be particularly useful in areas where crowding is less avoidable.
