DECRYPTION – The Indian variant, says Delta according to the new international nomenclature, is spreading rapidly in Great Britain.
Vaccines are still one step ahead of the English variant, which is the majority in France (and now called Alpha by the WHO), but the gap seems to be narrowing with the Indian variant which is spreading rapidly in Great Britain ( called Delta in the new international nomenclature). According to a study by the Institut Pasteur posted on the bioRxiv website, the Pfizer / BioNTech vaccine would indeed be slightly less effective after two doses. It remains to be seen to what extent, because this study only examines the invitro efficacy of certain antibodies. Indeed, to arrive at these results, the scientists took serum from people previously infected with Sars-CoV-2 or vaccinated. They then compared it to the different variants circulating in the country, in order to compare the sensitivity of the immune system.
The researchers thus isolated the Indian Delta variant from a nasal sample of a patient who developed Covid-19 a few days after his
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