A single serum against several versions of the coronavirus?

"I hope that by the fall - but it is not a certainty - we could have an" effective "vaccine against everything that is known at the moment", said this Wednesday the boss of the giant American pharmaceutical company Pfizer, Albert Bourla, during a press briefing by the International Federation of the Pharmaceutical Industry (Ifpma).

It would be an anti-Covid-19 vaccine effective against multiple variants.

Pfizer is currently conducting studies to find out what might be the best formula.

"Once we have the data that allows us to decide which (vaccine) is the best," said Albert Bourla.

First in the USA

Pfizer and Germany's BioNtech have developed one of the first and most effective vaccines against Covid-19, first injected in the UK at the end of 2020, less than a year after the disease was detected in China.

This messenger RNA vaccine – like Moderna's – has had its effectiveness reduced against the Omicron variant and its subvariants that give rise to Covid-19, although it still protects very effectively against severe symptoms, hospitalizations and death. .

Pfizer is currently testing different vaccines and doses.

"Once we know it's the best way to go, we'll seek approval" in the United States, Europe and elsewhere in the world, he said.


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