WHO looking forward to oral, nasal Covid vaccines

BSS :
The World Health Organization’s chief scientist said on Tuesday that she was looking forward to the “second generation” of Covid-19 vaccines, which could include nasal sprays and oral versions.
Soumya Swaminathan said such vaccines could have advantages over the current crop as they would be easier to deliver than injections and could even be self-administered.
Swaminathan said there were 129 different candidate vaccines that have got as far as clinical trials-being tested on humans-while a further 194 are not yet that advanced in their development and are still being worked on in laboratories.
“This covers the entire range of technologies,” she told a live interaction on WHO social media channels. “They are still in development. I am sure that some of them will prove to be very safe and efficacious and others may not.
“There could be advantages to some of the second generation vaccines to deliver than an injectable. “Ultimately we’ll be able to choose the ones that are most appropriate. “If not for Covid, we’re going to use these platforms for other infections in the future.”
Swaminathan explained the advantages of a vaccine being sprayed into the nose, as happens in some countries with influenza vaccines.