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Diagnosis of hepatitis E.
MedLine Citation:
PMID:  23026902     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Hepatitis E, caused by infection with hepatitis E virus (HEV), is a common cause of enterically-transmitted acute hepatitis in developing countries. Occasional cases of sporadic hepatitis E have been increasingly recognized in developed countries over the past decade. These cases differ from those in developing countries in being possibly caused by zoonotic transmission, often affecting people with a suppressed immune system and occasionally leading to persistent HEV infection. The commonly used tests for HEV infection include detection of IgM and IgG anti-HEV antibodies and detection of HEV RNA. IgM anti-HEV antibodies can be detected during the first few months after HEV infection, whereas IgG anti-HEV antibodies represent either recent or remote exposure. The presence of HEV RNA indicates current infection, whether acute or chronic. Although several diagnostic assays for anti-HEV antibodies are available, they have undergone fairly limited testing and often provide discordant results, particularly for IgG antibodies. Thus, although the available antibody assays might be useful for case diagnosis in areas with high disease endemicity, their use for case diagnosis in areas with low endemicity and for seroprevalence studies remains problematic. Improved validation of existing anti-HEV antibody assays or development of new assays with superior performance characteristics is urgently needed.
Authors:
Rakesh Aggarwal
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-02
Journal Detail:
Title:  Nature reviews. Gastroenterology & hepatology     Volume:  -     ISSN:  1759-5053     ISO Abbreviation:  Nat Rev Gastroenterol Hepatol     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101500079     Medline TA:  Nat Rev Gastroenterol Hepatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India. aggarwal.ra@gmail.com.
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