Public health doctor Martin Blachier, whose comments are often echoed by detractors of the Covid-19 vaccine, published a tweet that is ambiguous to say the least on Tuesday, December 14.
A tweet which met with a large echo, even on the set of Pascal Praud on CNews.
Reading the words of the professional, it is understood that the more doses a person has received of the vaccine, the more likely they are to be infected with the Omicron variant.
In reality, it is not.
“Omicron selects the vaccinated because the vaccine escape gives it an advantage in these people.
This is the statement posted by Martin Blachier on Twitter on December 14th.
This doctor specializing in public health even puts forward figures: “Danish data.
Omicron: 8% in vaccinated triples, 5.5% in vaccinated doubles, 1.2% in unvaccinated.
"
Danish data Omicron:
8% in triple vaccinated
5.5% in double vaccinated
1.2% in non-vaccinated
Omicron selects the vaccinated because the vaccine escape gives it an advantage in these people.
pic.twitter.com/Fqai2yQEz4
- Martin Blachier (@MartinBlachier) December 14, 2021
Internet users quickly interpreted, wrongly, that the Omicron variant would affect people who have received their third injection against Covid-19 more than those who have not been vaccinated.
“Frankly what he wrote is a bomb!
If that's true, it's a bomb!
», Commented Pascal Praud a few hours later on CNews, in his program
L'Heure des Pros 2
.
On social networks, the detractors of the doctor denounced the "ambiguity" of the post, which could suggest that vaccination increases the risk of contamination.
Others try to decipher the position of the doctor: “At the beginning he was completely behind the vaccination, and now he says that it is better not to be vaccinated?
Not to understand anything.
"
FAKE OFF
If, in his tweet, the doctor seems to mean that the vaccinated are more likely to be infected with the Omicron variant, in reality, it is not in reality.
Every day, the Danish equivalent of Public Health France publishes a document which takes stock of the health situation.
The one used by Martin Blachier was published on December 13.
Contacted, the doctor clarified his reasoning to 20 Minutes.
Distancing himself from his slightly provocative tweet, Martin Blachier underlines that, contrary to what some Internet users had been able to understand, "the vaccine does not increase the chances of catching the new variant of Covid-19".
“It is the vaccine escape that worries.
"
In fact, the Danish study only allows us to understand the diffusion of variants according to the vaccination status.
A good reading of the figures is therefore to say that 8.9% of cases of the Omicron variant recorded in Denmark concern people who have been triple vaccinated.
75% of cases of the Omicron variant involve people who have received two doses, and 13.8% of people who have not been vaccinated.
For the other variants, in particular the Delta variant, which is now the majority, the distribution of cases is a little different.
This variant infected people who received their booster dose in 4% of cases, people with a complete vaccination schedule in 48.9% of cases, and unvaccinated 43.6%.
The Omicron variant more resistant to vaccines
What can we conclude from these figures?
“The more you are vaccinated, the more you are protected against the Delta variant,” explains Martin Blachier.
But compared to other variants, Omicron reaches more people who have been fully vaccinated or who have received two doses.
Hence the concern of scientists and the WHO about the dissemination of this new variant.
Conclusion of Martin Blachier: “The best way not to be contaminated by Omicron is to have had the Delta.
"
For the professional, the health policy to adopt is simple: “We are heading towards an influenza strategy.
For influenza, we do not vaccinate the entire population.
Compulsory vaccination for the most vulnerable is essential for hospitals.
On the other hand, for the others, the best immunity is to let the young people be contaminated by the previous variant.
"
In any case, these data do not allow us to say that the vaccine no longer works against the new variant.
"The effectiveness of the vaccine is significantly reduced with a high number of brief contaminations in people who have been vaccinated," said Discovery president Ryan Noach, South Africa's leading private health insurance company, responsible for widespread study on the subject.
According to this, the effectiveness against the risk of contamination fell to 33%, against 80% against the previous dominant variant Delta.
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