This is the consequence of the large French study which attests that messenger RNA vaccines increase the risks of myocarditis and pericarditis: the High Authority of Health in France (HAS) on Monday advised against the use of the Moderna vaccine for the less 30 years old.
The HAS “recommends, for the population under the age of 30 and when it is available, the use of the Pfizer vaccine whether it is a primary vaccination or a booster”.
… But recommended for over 30s
Conversely, it recommends that the Moderna vaccine, “whose vaccine efficacy seems slightly better, can be used as a primary vaccination course and for the administration of a booster dose in half-dose in subjects over the age of 30. years”.
On October 15, the High Authority for Health recommended using exclusively the Pfizer / BioNtech vaccine for booster doses.
“Benefit-risk ratio of vaccines not questioned”
“When we weigh the effectiveness of vaccines against severe forms of Covid-19 (estimated at around 90%) and the existing but infrequent risks of myocarditis and pericarditis, with favorable development, the benefit-risk ratio of vaccines is not called into question “, assured Monday Mahmoud Zureik, director of the structure Epi-Phare.
HAS, for its part, reiterates the imperative to vaccinate as widely as possible.
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“Difficult to predict” the evolution of the epidemic
“The epidemic is currently marking a resumption of which it is difficult to predict the evolution, but the winter period which is starting together with the foreseeable drop in the effectiveness of vaccines in people vaccinated before the summer once again reminds us of the importance to obtain the best possible vaccine coverage for the entire population and in particular for people most likely to have a severe form of Covid-19, “insists the High Authority for Health.
It also considers it necessary to “maintain a high level of protection by administering a booster dose in the most vulnerable populations and those most exposed to the virus”.
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