Davies FG, 2010. The historical and recent impact of Rift Valley fever in Africa. Am J Trop Med Hyg 83: 73–74.
Laughlin LW, Meegan JM, Strausbaugh LJ, 1979. Epidemic Rift Valley fever in Egypt: observations of the spectrum of human illness. Trans R Soc Trop Med Hyg 73: 630–633.
Murithi RM, Munyua P, Ithondeka PM, Macharia JM, Hightower A, Luman ET, Breiman RF, Njenga MK, 2011. Rift Valley fever in Kenya: history of epizootics and identification of vulnerable districts. Epidemiol Infect 139: 372–380.
Peters CJ, Spertzel R, Patrick W, 2002. Aerosol technology and biological weapons. Knobler SL, Mahmoud AAF, Pray LA, eds. Biological Threats and Terrorism: Assessing the Science and Response Capabilities. Washington: National Academy Press, 66–77.
Davies FG, Highton RB, 1980. Possible vectors of Rift Valley fever in Kenya. Trans R Soc Trop Med Hyg 74: 815–816.
Davies FG, Linthicum KJ, James AD, 1985. Rainfall and epizootic Rift Valley fever. Bull World Health Organ 63: 941–943.
Linthicum KJ, Bailey CL, Davies FG, Kairo A, Logan TM, 1988. The horizontal distribution of Aedes pupae and their subsequent adults within a flooded dambo in Kenya: implications for Rift Valley fever virus control. J Am Mosq Control Assoc 4: 551–554.
Linthicum KJ, Davies FG, Kairo A, Bailey CL, 1985. Rift Valley fever virus (family Bunyaviridae, genus Phlebovirus). Isolations from diptera collected during an inter-epizootic period in Kenya. J Hyg (Lond) 95: 197–209.
Davies FG, Onyango E, 1978. Rift Valley Fever: the role of the vervet monkey as a reservoir or maintenance host for this virus. Trans R Soc Trop Med Hyg 72: 213–214.
Oelofsen MJ, Van der Ryst E, 1999. Could bats act as reservoir hosts for Rift Valley fever virus? Onderstepoort J Vet Res 66: 51–54.
Favier C, Chalvet-Monfray K, Sabatier P, Lancelot R, Fontenille D, Dubois MA, 2006. Rift Valley fever in West Africa: the role of space in endemicity. Trop Med Int Health 11: 1878–1888.
Evans A, Gakuya F, Paweska JT, Rostal M, Akoolo L, Van Vuren PJ, Manyibe T, Macharia JM, Ksiazek TG, Feikin DR, Breiman RF, Kariuki Njenga M, 2008. Prevalence of antibodies against Rift Valley fever virus in Kenyan wildlife. Epidemiol Infect 136: 1261–1269.
Anderson EC, Rowe LW, 1998. The prevalence of antibody to the viruses of bovine virus diarrhoea, bovine herpes virus 1, Rift Valley fever, ephemeral fever and bluetongue and to Leptospira spp. in free-ranging wildlife in Zimbabwe. Epidemiol Infect 121: 441–449.
Hoogstraal H, Meegan JM, Khalil GM, Adham FK, 1979. The Rift Valley fever epizootic in Egypt 1977–78. 2. Ecological and entomological studies. Trans R Soc Trop Med Hyg 73: 624–629.
Arthur RR, El-Sharkawy S, Cope SE, 1993. Recurrence of Rift Valley fever in Egypt. Lancet 342: 1149–1150.
Caron A, Cross PC, Du Toit JT, 2003. Ecological implications of bovine tuberculosis in African buffalo herds. Ecol Appl 13: 1338–1345.
Cross PC, Heisey DM, Bowers JA, Hay CT, Wolhuter J, Buss P, Hofmeyr M, Michel AL, Bengis RG, Bird TL, Du Toit JT, Getz WM, 2009. Disease, predation and demography: assessing the impacts of bovine tuberculosis on African buffalo by monitoring at individual and population levels. J Appl Ecol 46: 467–475.
Oosthuizen WC, Cross PC, Bowers JA, Hay CT, Ebinger MR, Buss P, Hofmeyr M, Cameron EZ, 2009. Effects of chemical immobilization on survival of African buffalo in the Kruger National Park. Wildlife Management 73: 149–153.
Grimsdell JJ, 1973. Age determination of the African buffalo, Syncerus caffer, Sparrman. East Afr J Wildlife 11: 31–53.
Pienaar U, 1969. Observations of developmental biology, growth and some aspects of the population ecology of African buffalo in the Kruger National Park. Koedoe 12: 29–52.
Olaleye OD, Tomori O, Schmitz H, 1996. Rift Valley fever in Nigeria: infections in domestic animals. Rev Sci Tech 15: 937–946.
Scott RM, Feinsod FM, Allam IH, Ksiazek TG, Peters CJ, Botros BA, Darwish MA, 1986. Serological tests for detecting Rift Valley fever viral antibodies in sheep from the Nile Delta. J Clin Microbiol 24: 612–614.
Tesh RB, Peralta PH, Shope RE, Chaniotis BN, Johnson KM, 1975. Antigenic relationships among phlebotomus fever group arboviruses and their implication for the epidemiology of sandfly fever. Am J Trop Med Hyg 24: 135–144.
Tesh RB, Peters CJ, Meegan JM, 1982. Studies on the antigenic relationship among phleboviruses. Am J Trop Med Hyg 31: 149–155.
Collao X, Palacios G, de Ory F, Sanbonmatsu S, Perez-Ruiz M, Navarro JM, Molina R, Hutchison SK, Lipkin IW, Tenorio A, Sanchez-Seco MP, 2010. Granada virus: a natural phlebovirus reassortant of the sandfly fever Naples serocomplex with low seroprevalence in humans. Am J Trop Med Hyg 83: 760–765.
Chen D, Getis A, 1998. Point Pattern Analysis. San Diego, CA: Department of Geography, San Diego State University.
Getis A, 1984. Interaction modeling using second-order analysis. Environ Plan A 16: 173–183.
Grimson RC, 1993. Disease clusters, exact distributions of maxima, and P-values. Stat Med 12: 1773–1794.
World Organisation for Animal Health, 2010. Handistatus II. Available at: http://www.oie.int/hs2/report.asp. Accessed March 29, 2010.
Al-Hazmi A, Al-Rajhi AA, Abboud EB, Ayoola EA, Al-Hazmi M, Saadi R, Ahmed N, 2005. Ocular complications of Rift Valley fever outbreak in Saudi Arabia. Ophthalmology 112: 313–318.
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Rift Valley fever virus (RVFV) is an emerging biodefense pathogen that poses significant threats to human and livestock health. To date, the interepidemic reservoirs of RVFV are not well defined. In a longitudinal survey of infectious diseases among African buffalo during 2000–2006, 550 buffalo were tested for antibodies against RVFV in 820 capture events in 302 georeferenced locations in Kruger National Park, South Africa. Overall, 115 buffalo (21%) were seropositive. Seroprevalence of RVFV was highest (32%) in the first study year, and decreased progressively in subsequent years, but had no detectable impact on survival. Nine (7%) of 126 resampled, initially seronegative animals seroconverted during periods outside any reported regional RVFV outbreaks. Seroconversions for RVFV were detected in significant temporal clusters during 2001–2003 and in 2004. These findings highlight the potential importance of wildlife as reservoirs for RVFV and interepidemic RVFV transmission in perpetuating regional RVFV transmission risk.
Financial support: This study was supported by National Science Foundation–National Institute of Health Ecology of Infectious Diseases program (grant DEB-0090323 to Wayne M. Getz) and the National Institutes of Health (grants U01AI45473-S1 to Charles H. King and KL2RR024990).
Authors' addresses: A. Desirée LaBeaud, Children's Hospital of Oakland Research Institute, Oakland, CA, E-mail: alabeaud@chori.org. Paul C. Cross, Northern Rocky Mountain Science Center, U.S. Geological Survey, Bozeman, MT, E-mail: pcross@usgs.gov. Wayne M. Getz, Department of Environmental Science Policy and Management, University of California, Berkeley, CA, E-mail: getz@nature.berkeley.edu. Allison Glinka, Cleveland Clinic Foundation JJ-604, Cleveland, OH, E-mail: glinkallison@gmail.com. Charles H. King, Center for Global Health and Diseases, Case Western Reserve University School of Medicine, Cleveland, OH, E-mail: chk@cwru.edu.
Davies FG, 2010. The historical and recent impact of Rift Valley fever in Africa. Am J Trop Med Hyg 83: 73–74.
Laughlin LW, Meegan JM, Strausbaugh LJ, 1979. Epidemic Rift Valley fever in Egypt: observations of the spectrum of human illness. Trans R Soc Trop Med Hyg 73: 630–633.
Murithi RM, Munyua P, Ithondeka PM, Macharia JM, Hightower A, Luman ET, Breiman RF, Njenga MK, 2011. Rift Valley fever in Kenya: history of epizootics and identification of vulnerable districts. Epidemiol Infect 139: 372–380.
Peters CJ, Spertzel R, Patrick W, 2002. Aerosol technology and biological weapons. Knobler SL, Mahmoud AAF, Pray LA, eds. Biological Threats and Terrorism: Assessing the Science and Response Capabilities. Washington: National Academy Press, 66–77.
Davies FG, Highton RB, 1980. Possible vectors of Rift Valley fever in Kenya. Trans R Soc Trop Med Hyg 74: 815–816.
Davies FG, Linthicum KJ, James AD, 1985. Rainfall and epizootic Rift Valley fever. Bull World Health Organ 63: 941–943.
Linthicum KJ, Bailey CL, Davies FG, Kairo A, Logan TM, 1988. The horizontal distribution of Aedes pupae and their subsequent adults within a flooded dambo in Kenya: implications for Rift Valley fever virus control. J Am Mosq Control Assoc 4: 551–554.
Linthicum KJ, Davies FG, Kairo A, Bailey CL, 1985. Rift Valley fever virus (family Bunyaviridae, genus Phlebovirus). Isolations from diptera collected during an inter-epizootic period in Kenya. J Hyg (Lond) 95: 197–209.
Davies FG, Onyango E, 1978. Rift Valley Fever: the role of the vervet monkey as a reservoir or maintenance host for this virus. Trans R Soc Trop Med Hyg 72: 213–214.
Oelofsen MJ, Van der Ryst E, 1999. Could bats act as reservoir hosts for Rift Valley fever virus? Onderstepoort J Vet Res 66: 51–54.
Favier C, Chalvet-Monfray K, Sabatier P, Lancelot R, Fontenille D, Dubois MA, 2006. Rift Valley fever in West Africa: the role of space in endemicity. Trop Med Int Health 11: 1878–1888.
Evans A, Gakuya F, Paweska JT, Rostal M, Akoolo L, Van Vuren PJ, Manyibe T, Macharia JM, Ksiazek TG, Feikin DR, Breiman RF, Kariuki Njenga M, 2008. Prevalence of antibodies against Rift Valley fever virus in Kenyan wildlife. Epidemiol Infect 136: 1261–1269.
Anderson EC, Rowe LW, 1998. The prevalence of antibody to the viruses of bovine virus diarrhoea, bovine herpes virus 1, Rift Valley fever, ephemeral fever and bluetongue and to Leptospira spp. in free-ranging wildlife in Zimbabwe. Epidemiol Infect 121: 441–449.
Hoogstraal H, Meegan JM, Khalil GM, Adham FK, 1979. The Rift Valley fever epizootic in Egypt 1977–78. 2. Ecological and entomological studies. Trans R Soc Trop Med Hyg 73: 624–629.
Arthur RR, El-Sharkawy S, Cope SE, 1993. Recurrence of Rift Valley fever in Egypt. Lancet 342: 1149–1150.
Caron A, Cross PC, Du Toit JT, 2003. Ecological implications of bovine tuberculosis in African buffalo herds. Ecol Appl 13: 1338–1345.
Cross PC, Heisey DM, Bowers JA, Hay CT, Wolhuter J, Buss P, Hofmeyr M, Michel AL, Bengis RG, Bird TL, Du Toit JT, Getz WM, 2009. Disease, predation and demography: assessing the impacts of bovine tuberculosis on African buffalo by monitoring at individual and population levels. J Appl Ecol 46: 467–475.
Oosthuizen WC, Cross PC, Bowers JA, Hay CT, Ebinger MR, Buss P, Hofmeyr M, Cameron EZ, 2009. Effects of chemical immobilization on survival of African buffalo in the Kruger National Park. Wildlife Management 73: 149–153.
Grimsdell JJ, 1973. Age determination of the African buffalo, Syncerus caffer, Sparrman. East Afr J Wildlife 11: 31–53.
Pienaar U, 1969. Observations of developmental biology, growth and some aspects of the population ecology of African buffalo in the Kruger National Park. Koedoe 12: 29–52.
Olaleye OD, Tomori O, Schmitz H, 1996. Rift Valley fever in Nigeria: infections in domestic animals. Rev Sci Tech 15: 937–946.
Scott RM, Feinsod FM, Allam IH, Ksiazek TG, Peters CJ, Botros BA, Darwish MA, 1986. Serological tests for detecting Rift Valley fever viral antibodies in sheep from the Nile Delta. J Clin Microbiol 24: 612–614.
Tesh RB, Peralta PH, Shope RE, Chaniotis BN, Johnson KM, 1975. Antigenic relationships among phlebotomus fever group arboviruses and their implication for the epidemiology of sandfly fever. Am J Trop Med Hyg 24: 135–144.
Tesh RB, Peters CJ, Meegan JM, 1982. Studies on the antigenic relationship among phleboviruses. Am J Trop Med Hyg 31: 149–155.
Collao X, Palacios G, de Ory F, Sanbonmatsu S, Perez-Ruiz M, Navarro JM, Molina R, Hutchison SK, Lipkin IW, Tenorio A, Sanchez-Seco MP, 2010. Granada virus: a natural phlebovirus reassortant of the sandfly fever Naples serocomplex with low seroprevalence in humans. Am J Trop Med Hyg 83: 760–765.
Chen D, Getis A, 1998. Point Pattern Analysis. San Diego, CA: Department of Geography, San Diego State University.
Getis A, 1984. Interaction modeling using second-order analysis. Environ Plan A 16: 173–183.
Grimson RC, 1993. Disease clusters, exact distributions of maxima, and P-values. Stat Med 12: 1773–1794.
World Organisation for Animal Health, 2010. Handistatus II. Available at: http://www.oie.int/hs2/report.asp. Accessed March 29, 2010.
Al-Hazmi A, Al-Rajhi AA, Abboud EB, Ayoola EA, Al-Hazmi M, Saadi R, Ahmed N, 2005. Ocular complications of Rift Valley fever outbreak in Saudi Arabia. Ophthalmology 112: 313–318.
Past two years | Past Year | Past 30 Days | |
---|---|---|---|
Abstract Views | 340 | 288 | 43 |
Full Text Views | 421 | 15 | 1 |
PDF Downloads | 124 | 8 | 1 |