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Severe Acute Hepatitis of Unknown Origin in Children: What Do We Know Today?

Journal of Clinical and Translational Hepatology 2022年第4期10卷 711-717页

作者： María Teresa Pérez-Gracia Antonio Tarín-Pelló beatriz suay-garcía Área de Microbiología.Departamento de Farmacia Universidad Cardenal Herrera-CEU.CEU UniversitiesAlfara del Patri-arca(Valencia)Spain ESI International Chair@CEU-UCH Departamento de MatemáticasFísica y Ciencias TecnológicasUniversidad Cardenal Herrera-CEUCEU UniversitiesAlfara del Patriarca(Valencia)Spain

In May 2022, the UK International Health Regulations National Focal Point notified World Health Organization of 176 cases of severe acute hepatitis of unknown etiology in children under 10 years of age. From that moment on, cases of severe acute hepatitis of unknown origin in children began to be reported in several countries. As of June 17, 2022, a total of 991 cases had been reported in 35 countries worldwide, 50 children needed a liver transplant and 28 patients died. According to information published by ECDC, 449 cases have been detected in 21 EU countries. The children were between 1 month and 16 years of age. Adenovirus was detected in 62.2% of the analyzed samples. So far, the cause of these cases is unknown and many hypotheses remain open, but hepatitis A-E viruses and COVID-19 vaccines have been ruled out. A possible hypothesis has been published to explain the cause of these cases of severe hepatitis, according to which it could be a consequence of adenovirus infection in the intestine in healthy children previously infected with SARS-CoV-2. No other clear epidemiological risk factors have been identified to date. Thus, at this time, the etiology of the current cases of hepatitis remains under active investigation.

关键词： Hepatitis Children Unknown origin SARS-CoV-2 Adenovirus

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Current Knowledge on Hepatitis E

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Journal of Clinical and Translational Hepatology 2015年第2期3卷 117-126页

作者： María Teresa Pérez-Gracia Mario garcía beatriz suay María Luisa Mateos-Lindemann (A)rea de Microbiología Departamento de Farmacia Instituto de Ciencias Biomédicas Facultad de Ciencias de la Salud Universidad CEU Cardenal Herrera Valencia Spain Unidad de Virología Servicio de Microbiología Hospital Universitario Ramóny Cajal Madrid Spain

Although only a single serotype of hepatitis E virus (HEV),the causative agent of hepatitis E,has been identified,there is great genetic variation among the different HEV isolates *** are at least four major recognized genotypes of HEV:genotypes 1 and 2 are mainly restricted to humans and linked to epidemic outbreaks in nonindustrialized countries,whereas genotypes 3 and 4 are zoonotic in both developing and industrialized *** human strains,genotype 3 and 4 strains of HEV have been genetically characterized from swine,sika deer,mongooses,sheep,and ***,there are approximately 11,000 human and animal sequences of HEV available at the International Nucleotide Sequence Database *** is the major cause of waterborne outbreaks of hepatitis in areas of poor ***,it is responsible for sporadic cases of viral hepatitis in not only endemic but industrialized countries as *** of HEV occurs predominantly by the fecal-oral route,although parenteral and perinatal routes have been *** infection develops in most individuals as a self-limiting,acute,icteric hepatitis;with mortality rates around 1%.However,some affected individuals will develop fulminant hepatic failure,a serious condition that is frequently fatal without a liver *** complication is particularly common when the infection occurs in pregnant women,where mortality rates rise dramatically to up to 25%.Among the preventive measures available to avoid HEV infection,two separate subunit vaccines containing recombinant truncated capsid proteins of HEV have been shown to be highly effective in the prevention of *** of them,HEV 239,was approved in China,and its commercialization by Innovax began in November 2012 under the name Hecolin(R).

关键词： Hepatitis E virus Hepatitis E HEV Zoonosis

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