What will we learn about new era anti-Covid vaccines?

As of September 15, there have been 33,263 new instances of Covid-19 recorded over the previous 24 hours in line with Public well being Francea rise of 67.4% over the past seven days. Nearly all of them have been contaminated with the Omicron variant.

Omicron sub-variants: the vaccine targets BA.4 and BA.1

To raised shield the inhabitants, the company european medicines (EMA) authorised, this Monday, September 12, using a brand new vaccine towards Covid-19. That is manufactured by the Pfizer/BioNTech laboratory.

It is without doubt one of the newest vaccines to reach available on the market, these known as bivalent, which shield towards the unique pressure of the Covid-19 virus but additionally towards the sub-variants of Omicron: BA.1, BA.4 and BA.5 , the latter two being the bulk at this time among the many instances of Covid-19.

Earlier bivalent vaccines focused BA.1

In a press launch printed on September 1, the EMA had beforehand authorised using bivalent vaccines from Pfizer/BioNTech and Moderna, however these solely focused the BA.1 subvariant.

The particularity of the brand new Pfizer/BioNTech vaccine – the second bivalent that the laboratory has developed – is due to this fact to additionally goal the BA.4 and BA.5 sub-variants, along with the unique pressure of Covid-19 and the sub-variant BA.1.

Bivalent vaccines from Pfizer/BioNTech and Moderna nonetheless use Messenger RNA expertise. This includes sending innocent copies of the virus for the physique to then produce the proteins wanted to make antibodies towards the virus. “With messenger RNA vaccines, the concept is to let our cells make the element towards which our physique will be taught to defend itself.“, exact Nationwide Institute of Well being and Medical Analysis (Inserm).

New anti-Covid serums quickly in France

In different international locations, equivalent to the USA or the UK, the advertising and marketing of bivalent vaccines has already been validated. In France, for the second, there is no such thing as a date of inserting available on the market. However they need to be used for the vaccine booster marketing campaign. Certainly, theopinion of the Scientific Council printed on July 19 choose that “these new vaccines have an efficacy similar to the earlier ones and maybe higher preserved on the brand new Omicron variants”.