A first case of Indian variant (also known as the Delta variant) was detected in Brittany, announced this Friday, Stéphane Mulliez, director general of the Regional Health Agency (ARS) Brittany, at Telegram. “This is a man who lives in Rennes. He works in a company and has children in different schools ”.
Five other cases in the region are also suspected of having been infected with the Indian mutation. “Their PCR test was sent to the lab for sequencing. They are being analyzed. We should receive the results within ten days, ”explains Stéphane Mulliez. A crisis unit has just been activated at ARS Bretagne, to carefully monitor the spread of the variant on Breton territory and to carry out contact-tracing of the entourage of patients contaminated, or possibly contaminated, by the variant as quickly as possible. Delta.
Majority variant in Brittany in 2 to 4 months
“This variant will become the majority in the region within two to four months, given its great transmissibility,” Stéphane Mulliez also tells us. Its contagiousness is indeed much greater than that of the English variant (Alpha), by 50% more, according to Jean-François Delfraissy, the president of the Scientific Council.
Its symptoms, very similar to the classic cold or the flu, also make it more difficult to detect without a PCR test. “Vaccination works against the Indian variant”, however reassures the DG of the ARS. “On the other hand, it makes us fear a fourth wave in the fall among unvaccinated people.”
Fourth wave risk
To date, the Delta variant represents “between 2 and 4% of positive cases” of covid-19 detected in France, that is to say “50 to 150 new diagnoses” per day, indicated Tuesday the Minister of Health, Olivier Véran. Three weeks ago, it was only 0.5% of cases.
“It may still be little, but it was the English situation a few weeks ago”, recalling that the Delta variant “represents more than 90% of cases in circulation” in the United Kingdom, where the epidemic is left “on an ascending trajectory”, with “almost twice as many daily cases” than in France.
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