26-09-2021, 08:32 PM
(26-09-2021, 08:27 PM)watchfirst9 Wrote: Unless Sg start to trials on nasal spray,
Vaccine nasal sprays aim to 'shut door' on virus
ETX Daily Up on MSN.com|6 days ago
Could delivering Covid-19 immunity directly to the nose -- the area of the body via which it is most likely to be transmitted -- help conquer the pandemic? The World Health Organization says clinical trials are underway to evaluate eight nasal spray vaccines that target Covid-19.
We don't know how effective are these nasal sprays..