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‘Bushmeat’ Trade May Import Disease, Study Suggests

January 13, 2012

Huffington Post

From The Huffington Post
By Lynne Peeples

Thousands of pounds of primate parts, rodents and other dry, smoked or raw animals — so-called “bushmeat” — are smuggled into the United States as food every year, frequently hidden inside cases of similarly stinky but legal fish. Scientists now warn that the increasing practice may also be bringing deadly disease into the country.

“We know a fair amount about the risks of harvesting and slaughtering the animals in countries far away,” said Nina Marano, branch chief of quarantine and border health services at the U.S. Centers for Disease Control and Prevention. “But we wanted to know more about the persistence, if any, [of pathogens] once the animals have been slaughtered.”

In a small study published Tuesday in the journal PLoS ONE, Marano and colleagues from several institutions tested samples of some 44 nonhuman primates and rodents seized by customs agents at JFK International Airport in New York, as well as a few other U.S. points of entry. They then ran sophisticated genetic tests to detect pathogens.

Sure enough, the researchers found that several bugs had made the trip, including diseases that belong to the same family as HIV — which also originated in African bushmeat.

“This is good example of why we want to know about these viruses. We want to prevent any kind of future epidemic similar to what happened with HIV,” said Bill Switzer, a microbiologist at the CDC and preeminent expert on the simian foamy virus. First identified in the mid-1990s, SFV is common in nonhuman primates and known to spread quickly. It has also made the jump to humans, though it has yet to cause obvious symptoms.

Among the other pathogens found in the confiscated bushmeat were several forms of herpes, all of which could pose threats to humans.

“We are also worried about the viruses that we haven’t identified yet,” said Kristine Smith, the study’s lead researcher and the associate director for health and policy at EcoHealth Alliance, a New York-based organization of scientists dedicated to the dual goals of conservation and public health.

Overall, an estimated three of every four emerging infectious diseases in humans originate in wildlife. As HuffPost reported last month, the live wildlife trade can also expose humans to infectious diseases such as monkeypox, bird flu and rat bite fever. Boris Pavlin, the head of the Northern Micronesia office of the World Health Organization who was not involved in the Smith study, warned of potential exposures from close contact with pets that can bite and scratch, noting that “a living being can create an infectious aerosol, which bushmeat normally would not.”

Pavlin said he was not surprised by the results of the Smith study. “My research has shown that there are myriad species of imported animals that are known to be potential carriers of zoonotic pathogens,” he said. “This study is the first to demonstrate virus directly in imported bushmeat, but it basically confirms what we all suspected.”

A person handling meat may be directly exposed to an animal’s blood and internal tissues, which Pavlin said “could be extremely dangerous, particularly as the bushmeat being prepared may be ‘double-dead.'” In other words, the animal may have initially died from disease before being found and processed for consumption. This is the scenario that likely gave rise to the deadly Ebola virus.

People may also be exposed to disease by eating the bushmeat. As with chicken and salmonella, the level of risk depends on how well the meat is cooked, but millions of Africans rely on bushmeat for protein, and surveys of West African communities have found that many people are unaware that they could get sick from this practice.

While greater travel and immigration between the United States and Africa means the potential for more direct U.S. exposure, Smith suggests that even a bushmeat hunter contracting a disease abroad could affect health, economy, food and natural resources here.

“Unfortunately, it is ‘One Health‘,” said Smith, referring to the emerging movement that seeks more recognition of the connections between the health of the environment, animals and human beings.

To get a better handle on just how much bushmeat is entering the country — currently estimated at 15,000 pounds a year — as well as the range of diseases that are traveling with it, Smith and her team are now expanding their study to include most of the U.S. airports that have a CDC quarantine.

Any bushmeat found by U.S. customs agents is already confiscated and destroyed. Ideally, the CDC would like to intervene earlier — say, before someone abroad even plans their trip. “We are hoping that as we go along with these studies, we can develop educational campaigns to better inform people coming into the U.S. about the risks of bringing bushmeat,” said Gale Galland, leader of the CDC’s zoonoses team.

Such efforts may well pay dividends, Pavlin said. “The end users of bushmeat are likely to be very specific communities, which may benefit from targeted efforts to educate them about the potential risks associated with bushmeat,” he said. “If we can decrease the demand, we can decrease the risk.”

you are what you eat
what else can one say
if you eat this sad meat
you could end up

Karen Lyons Kalmenson

5 Comments leave one →
  1. January 13, 2012 9:25 pm

    Ghouls. Non human sicklings that i hope do not live.


  2. carol crunkhorn permalink
    January 13, 2012 10:03 pm

    Those who are stupid (and unethical) enough to eat it deserve to get sick… natural selection at work.


  3. karen lyons kalmenson permalink
    January 14, 2012 3:45 am

    you are what you eat
    what else can one say
    if you eat this sad meat
    you could end up


  4. linda badham permalink
    January 14, 2012 1:24 pm

    what does anyone expect ? you let animals in the country , how i don’t know , karma happens. !!!


  5. karin yates permalink
    January 15, 2012 8:03 pm

    I say, anyone eating ANY animal gets what they deserve, in respect to pathogens and diseases.


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