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Hepatitis E In Europe: Are Pigs Or Pork The Problem?

Date:
September 4, 2007
Source:
Society for General Microbiology
Summary:
Hepatitis E virus infections can be fatal in pregnant women, but until recently doctors thought the disease was confined to China, India and developing countries. Now people are also contracting the disease in Europe according to scientists.

Hepatitis E virus infections can be fatal in pregnant women, but until recently doctors thought the disease was confined to China, India and developing countries. Now Europeans are also contracting the disease here, according to scientists.

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Hepatitis E virus is one of the few viruses which has been shown to be transmitted directly from animals through food. It was recently thought to be confined to developing countries, and although scientists are still unsure exactly how it spreads to people, direct contact with pigs or eating contaminated pork products is a likely route.

"If this proves to be a relevant route for pig to human infection for Hepatitis E in Europe, food safety regulations might need to be adapted accordingly," says Dutch researcher Erwin Duizer. "Where we do find Hepatitis E virus identified in Europe then the strain is usually closely related to the viruses found in pigs in the same country."

Far fewer cases of Hepatitis E virus are reported than actually occur, since doctors currently rarely ask for the relevant diagnostic tests in many industrialized countries. Although they do not yet know the exact route for most infections, the scientists do know that these viruses can infect people if they eat infected pig's livers without cooking them.

Genetic material from Hepatitis E viruses has already been detected in pig livers being offered for sale in Japan, USA and the Netherlands, proving that European pigs are in contact with Hepatitis E. Wild boar products could present a similar risk.

"To improve understanding of this disease, doctors should routinely start asking for Hepatitis E screening tests, even if the patient has not been travelling in India, China or other countries where they might expect to be at risk of infection" says Erwin Duizer. "Once more people are correctly diagnosed with viral Hepatitis E, they can be treated more effectively and we can learn more on the transmission routes. Current rates of diagnosis are up to13% of acute viral hepatitis patients in European countries, but we think the true rate is much higher. Up to 3% of blood donors in Europe show evidence of exposure to the virus through detectable antibodies."

"We also need to quickly work out the local route of infection in Europeans, as knowing if Hepatitis E is directly caused by eating pork meat or liver, or caused by foods or people being in contact with pig faeces, will make it possible to implement effective preventive measures", says Erwin Duizer.

Dr Duizer presented the paper 'Endemic HEV in Europe: prevalence and transmission' at 1445 on 03 September 2007 in the Microbial Infection Group session of the 161st Meeting of the Society for General Microbiology at the University of Edinburgh, 03 - 06 September 2007.


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The above story is based on materials provided by Society for General Microbiology. Note: Materials may be edited for content and length.


Cite This Page:

Society for General Microbiology. "Hepatitis E In Europe: Are Pigs Or Pork The Problem?." ScienceDaily. ScienceDaily, 4 September 2007. <www.sciencedaily.com/releases/2007/09/070903205004.htm>.
Society for General Microbiology. (2007, September 4). Hepatitis E In Europe: Are Pigs Or Pork The Problem?. ScienceDaily. Retrieved November 25, 2014 from www.sciencedaily.com/releases/2007/09/070903205004.htm
Society for General Microbiology. "Hepatitis E In Europe: Are Pigs Or Pork The Problem?." ScienceDaily. www.sciencedaily.com/releases/2007/09/070903205004.htm (accessed November 25, 2014).

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