deux nouvelles études avancent une explication

The two studies published on Monday concluded that an infection with Covid-19 was not responsible for the appearance of this case of hepatitis.

Deux études scientifiques brought what Monday un nouvel éclairage sur de mystérieux cas d’hépatites, de graves inflammations du foie, ayant touché de très jeunes enfants dans de nombreux pays ces derniers mois, mais restant until inexpliqués.

A little over 1000 cases have been registered in 35 countries, according to the World Health Organization, and 22 deaths. The majority of children affected are less than six years old, and about 5% of the two have received a foie graffe.

The two studies, which have not yet been peer-reviewed, concluded that an infection with Covid-19 was not responsible. Le coronavirus n’a pas was detected in foie des enfants malades studiés, and the proportion of those who presented antibodies against Covid-19 was similar to that of children who are not affected with these hepatitises.

Respective conducts par des scientifiques en Ecosse et en Angleterre, ces études pointent ainsi du doigt un autre culpable: un common virus appelé AAV2 (adéno-associé virus 2), detected à des niveaux eléfatt chez les enfants malades. What virus is not normally known to cause disease.

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Il ne peut se replica seul, et a besoin pour cela d’un autre virus, an adenovirus, ou more rarely le virus de l’herpès (HHV6). Les chercheurs pensent que la co-infection de deux viruses (AAV2 and an adenovirus, or le HHV6) is currently the best explanation for these cases of hepatitis.

“Je pense qu’il s’agit d’une explicatione plausible pour ces cas”, commented in a statement Deirdre Kelly, professeur en hépatologie pédiatrique à l’université de Birmingham, et n’étant pas implivée dans ces études. “Co-infection appears to play a key role.”

“Mais on ne comprend toujours pas why certain children developed des cas grave de la maladie necessitant une grafffe. at-elle added.

Les scientifiques do not understand more clearly pourquoi ces cas appareilence precis maintenant. One hypothesis is that the confinements linked to the coronavirus had an influence, for example in changing the usual circulation of other viruses, or in empêchant les children to create certain defenses that face the viruses that were less confronted.

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