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© Research
Publication : The American journal of tropical medicine and hygiene

High prevalence of hepatitis E in humans and pigs and evidence of genotype-3 virus in swine, Madagascar.

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in The American journal of tropical medicine and hygiene - 03 Dec 2012

Temmam S, Besnard L, Andriamandimby SF, Foray C, Rasamoelina-Andriamanivo H, Héraud JM, Cardinale E, Dellagi K, Pavio N, Pascalis H, Porphyre V,

Link to Pubmed [PMID] – 23208879

Link to DOI – 10.4269/ajtmh.2012.12-0615

Am J Trop Med Hyg 2013 Feb; 88(2): 329-38

Hepatitis E virus (HEV) causes an orofecal disease transmitted through poor hygiene environments, contaminated food (mainly pork products), or by contacts with infected animals. Very little data are currently available regarding the disease in the Southwestern Indian Ocean Islands. We report the first sero- and viro-survey for HEV in human and swine in Madagascar. A seroprevalence rate of 14.1% (60 of 427) was measured in slaughterhouse workers. Seroprevalence to HEV in pigs was estimated to 71.2% (178 of 250), strongly suggesting the existence of a zoonotic cycle. Three out of 250 pig livers (1.2%) tested HEV RNA-positive by quantitative polymerase chain reaction. Phylogenetic analyses based on 1-kb sequences of the ORF 2-3 identified these viruses as HEV genotype 3. Sequences clustered in a distinct Malagasy sub-clade, possibly representative of a new sub-genotype, for which the date of emergence was estimated around 1989. Further studies are needed to confirm other transmission routes of HEV to humans, especially through non-zoonotic cycles.

https://pubmed.ncbi.nlm.nih.gov/23208879