World Health Organization (WHO) chief scientist Soumya Swaminathan said on Tuesday (November 9) to look forward to the second generation of anti-Covid vaccines, which could include nasal sprays or pills.
Read also Third dose: Emmanuel Macron wants to accelerate the pace
These second-generation vaccines would have the advantage of being easier to use than injections by injection and could be self-administered, she said on WHO channels on social networks. No less than 129 vaccines are being examined, some of which are in clinical trials, and therefore tested on human beings, against 194 which are not yet at such an advanced stage.
“They cover the full range of technologies,”
she said.
“They are still being studied but I am sure that some of them will be very safe and effective, and others less,”
she added.
WHO will choose the most appropriate and is also considering using some for the development of vaccines against other diseases.
The advantage of a nasal vaccine, as is already the case in some countries for the flu, is that it can treat the virus even before it reaches the lungs, said Soumya Sawaminathan.
Read alsoCovid-19: Israel has won its bet on the third dose, but hesitates on the issue of children
The WHO has given emergency marketing authorization for seven anti-Covid vaccines, those manufactured by the laboratories Pfizer / BioNTech, Moderna, AstraZeneca, Johnson & Johnson, Sinopharm, Sinovac and Bharat Biotech.
“So far, when it comes to the vaccines that we have approved, there haven't been any signs that are worrying enough that we need to say,
'Okay, we need to review this vaccine,' she said. still assured.
More than 7.25 billion vaccines have been administered worldwide, according to a count established by AFP.
