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Volume 19, Number 4—April 2013
Letter

Monkey Bites among US Military Members, Afghanistan, 2011

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To the Editor: We take serious issue with the dispatch by Mease and Baker on monkey bites among US military members in Afghanistan during 2011 (1). In particular, we are troubled by the first paragraph. The dispatch opens by listing bites from rhesus macaques (Macaca mulatta) as one of the many risks faced by military personnel deployed to Afghanistan. Although technically a true statement, it is misleading in its perspective. Since 2001, ≈2,000 US soldiers have died in Afghanistan and another ≈18,000 have been wounded in action (2). The authors juxtapose this toll with minor injuries incurred by 10 soldiers who flouted explicit rules prohibiting contact with pet monkeys.

None of the bitten soldiers were reported to have sequelae. Furthermore, the first paragraph leaves the impression that a US Army soldier who died of rabies while serving in eastern Afghanistan may have contracted the disease from a macaque. This finding would be an extremely unlikely occurrence.

We have yet to see a single credible report of macaque-to-human transmission of rabies. In fact, we have yet to see a report of naturally acquired rabies infection in a macaque. Similarly, although antiviral prophylaxis is routinely prescribed to persons bitten by rhesus monkeys, there is not a single report of herpes B virus infection in a human outside the laboratory/zoo context, although thousands of persons are likely bitten by macaques in Asia every year (3,4).

In contrast, zoonotic transmission of simian foamy virus, a retrovirus ubiquitous in nonhuman primates, has been shown to occur from macaques to humans, probably through monkey bites, although this virus has not been shown to cause disease in humans (5). Although it is advisable to avoid contact with monkeys, risk for disease transmission should be placed in proper perspective. Exaggerating risks of bites has, in the past, led to irrational culling of entire populations of macaques (6).

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Gregory A. Engel, Agustin Fuentes, Benjamin P.Y.-H. Lee, Michael A. Schillaci, and Lisa Jones-Engel

Author affiliations: Swedish Family Medicine, Seattle, Washington, USA (G.A. Engel); University of Notre Dame, South Bend, Indiana, USA (A. Fuentes); National Parks Board, Singapore (B.P.Y.-H. Lee); University of Toronto Scarborough, Toronto, Ontario, Canada (M.A. Schillaci); University of Washington, Seattle (G.A. Engel, L. Jones-Engel)

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References

  1. Mease  LE, Baker  KA. Monkey bites among US military members, Afghanistan, 2011. Emerg Infect Dis. 2012;18:16479. DOIPubMed
  2. US Department of Defense. Casualty status: Operation Iraqi Freedom; Operation New Dawn; Operation Enduring Freedom. November 6, 2012 [cited 2012 Nov 7]. http://www.defense.gov/news/casualty.pdf
  3. Engel  GA, Jones-Engel  L, Schillaci  MA, Suaryana  KG, Putra  A, Fuentes  A. Human exposure to herpesvirus B–seropositive macaques, Bali, Indonesia. Emerg Infect Dis. 2002;8:78995. DOIPubMed
  4. Fuentes  A, Gamerl  S. Disproportionate participation by age/sex classes in aggressive interactions between long-tailed macaques (Macaca fascicularis) and human tourists at Padangtegal Monkey Forest, Bali, Indonesia. Am J Primatol. 2005;66:197204. DOIPubMed
  5. Jones-Engel  L, Engel  GA, Schillaci  MA, Aida Rompis  A, Putra  A, Suaryana  KG, Primate-to-human retroviral transmission in Asia. Emerg Infect Dis. 2005;11:102835. DOIPubMed
  6. Monkeys with herpes B virus culled at a safari park. Commun Dis Rep CDR Wkly. 2000;10:99,102.PubMed

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Cite This Article

DOI: 10.3201/eid1904.121505

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Table of Contents – Volume 19, Number 4—April 2013

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Page created: March 08, 2013
Page updated: March 08, 2013
Page reviewed: March 08, 2013
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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