Swine Ebola - No Joke!

As if "swine flu" wasn't bad enough, Scientific American is reporting that the Ebola virus has been detected in domestic pigs in the Philippines. The particular strain of the virus, Reston ebolavirus, is not known to cause fatal haemorrhagic fever in humans, but is still rated a class 4 pathogen by the US Center for Disease Control (it's highest rating) because of the extreme fatality rate and absence of effective treatment of the disease caused by other Ebola viruses. One farmhand who worked with the pigs has also tested positive for R.ebolavirus, but is asymptomatic.

In this case it seems like most likely that the pigs caught the disease from the human rather than the other way round. However that pigs can catch and potentially pass on the organism to humans is an unexpected, and worrying, development. Michael McIntosh of the Department of Agriculture expressed concern not only that the Reston strain might mutate into something more deadly in its new host, but that the other disease-causing strains might also be using pigs as a reservoir. "What is the level of risk?" said McIntosh, "We really don't know" (Scientific American Article) (Paper in Science).

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