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Primate Viruses Transmitted To People Through Bushmeat

Date:
March 19, 2004
Source:
Johns Hopkins University Bloomberg School Of Public Health
Summary:
People in Central Africa who hunt monkeys and great apes are routinely being infected by retroviruses, the class of viruses that includes HIV. An international team of researchers from Cameroon and the United States has documented, for the first time, the transmission of a retrovirus from primates to people in natural settings.

People in Central Africa who hunt monkeys and great apes are routinely being infected by retroviruses, the class of viruses that includes HIV. An international team of researchers from Cameroon and the United States has documented, for the first time, the transmission of a retrovirus from primates to people in natural settings.

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In the March 20, 2004, edition of The Lancet, researchers from the Johns Hopkins Bloomberg School of Public Health, the Cameroon Ministry of Health, the Centers for Disease Control and Prevention and other institutions report the presence of antibodies for simian foamy virus (SFV) in 1 percent of the people tested. People infected with SFV came from multiple isolated villages and were infected with viruses from at least three separate species of monkey and ape.

"Simian foamy virus should be considered a novel retrovirus of humans. Researchers have documented animal to human transmission of SFV in the laboratory, but our study is the first to demonstrate that these retroviruses are actively crossing into people," said Nathan Wolfe, ScD, lead author of the study and an assistant professor in the Department of Epidemiology at the School of Public Health. "The hunting and butchering of primates plays a role in retroviral emergence. It is in all of our interests to put into place economic alternatives to help people move away from hunting and eating these animals. In addition to preserving endangered species, such development efforts will reduce the risk that ongoing cross-species transmission of retroviruses and other pathogens could spark future epidemics similar to HIV," added Dr. Wolfe.

For the study, Dr. Wolfe and his colleagues examined blood samples from 1,099 individuals from Cameroon who were taking part in an HIV prevention program. All of the study participants reported having some exposure to non-human primate blood, which occurred primarily through hunting and butchering. The blood samples were screened for SFV antibodies, which were detected in 10 of the samples. Individuals were identified as being infected with viruses from three different primate species, which included De Brazza's guenon, mandrill and gorilla. De Brazza's and mandrill are also naturally infected with simian immunodeficiency viruses (SIV), the same class of viruses from which HIV originated. It is not known if SFV is harmful to humans nor whether it can be transferred from person to person or through blood transfusions. Further research on these questions is ongoing.

"The SFV infections in this study were from several geographically isolated locations. This suggests that, contrary to conventional wisdom, retroviral zoonosis is widespread and arising from various locations where people are naturally exposed to mandrills, gorillas and other monkeys and apes," said Donald S. Burke, MD, co-author of the study and a professor of International Health and Epidemiology at the School of Public Health.

###

"Naturally acquired simian retrovirus infections in central African hunters" (The Lancet, Vol. 363, Pages 932-7, March 20, 2004) was written by Nathan D. Wolfe, William M. Switzer, Jean K. Carr, Vinod B. Bhullar, Vedapuri Shanmugam, Ubald Tamoufe, A. Tassy Prosser, Judith N. Torimiro, Anthony Wright, Eitel Mpoudi-Ngole, Francine E. McCutchan and, Deborah L. Brix, Thomas M. Folks, Donald S. Burke and Walid Heneine.

The research was funded by grants from the U.S. Military HIV Research Program, the National Institutes of Health's Fogarty International Center and the Johns Hopkins Bloomberg School of Public Health's Center for a Livable Future.


Story Source:

The above story is based on materials provided by Johns Hopkins University Bloomberg School Of Public Health. Note: Materials may be edited for content and length.


Cite This Page:

Johns Hopkins University Bloomberg School Of Public Health. "Primate Viruses Transmitted To People Through Bushmeat." ScienceDaily. ScienceDaily, 19 March 2004. <www.sciencedaily.com/releases/2004/03/040319074933.htm>.
Johns Hopkins University Bloomberg School Of Public Health. (2004, March 19). Primate Viruses Transmitted To People Through Bushmeat. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2004/03/040319074933.htm
Johns Hopkins University Bloomberg School Of Public Health. "Primate Viruses Transmitted To People Through Bushmeat." ScienceDaily. www.sciencedaily.com/releases/2004/03/040319074933.htm (accessed December 21, 2014).

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