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As the Indian mutant occupies the world, a recent study found that people previously infected with Covid-19 are now more likely to be infected again due to the delta variant.
A laboratory analysis conducted by French researchers led by the Institut Pasteur in Paris revealed that the mutation originating in India has a 4 times greater capacity to defeat the antibodies resulting from a previous infection compared to the alpha variant, for example, in the United Kingdom, according to what was published by the British newspaper “The Telegraph”.
The study showed that a single dose of the two vaccines, Pfizer or AstraZeneca, offered only 10% protection against the Delta variant, at a time when the variant was already thought to be up to 60 % more infectious than the version that swept across the UK. last winter.
(expressive)
Two doses of vaccine
It should be noted that a single dose of either of the two main vaccines used in the UK has been shown to be “weak or ineffective” against the delta version and the beta version (South Africa), which has not yet established a foothold in Brittany.
However, administration of a second dose of either vaccine resulted in a 95% equivalent response even though the antibodies were 3-5 times weaker against delta than against alpha.
(expressive)
And the delta mutant, which first appeared in India, is the most contagious since the outbreak of the epidemic in early 2020. Its spread and the lifting of health restrictions in several countries around the world have prompted the World Health Organization to put in place. keep. that “the world is at a dangerous point” with this epidemic which has so far claimed more than four million lives worldwide.
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