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Rift valley fever surveillance in lower Senegal river basin : update 10 years after the epidemic

Author
Organization
Abstract
After the Rift valley fever (RVF) epidemic of 1987 in the Senegal River Basin, RVF surveillance based on serosurveys has been conducted for 10 years. Serum samples were obtained from 1336 persons and from sheer and goats in selected areas, and these were tested for IgG/IgM RVF antibodies by ELISA. After a period of regular decrease in RVF prevalence in domestic animals until 1993, an epizootic was observed in all herds in 1994-95 with increases in IgM levels and abortions. During the same period, no human cases or RVF IgM were detected. The RVF Ige prevalence significantly correlated with dare of birth: children born after 1987 have a low prevalence (5%) in clear contrast to the older population (25.3%) in Podor district. A retrospective analysis of rainfall and RVF prevalence in small domestic animals over the last 10 years showed that the re-emergence correlated with heavy rainfall. A general analysis of the risk of re-emergence and the efficiency of this RVF surveillance system are presented.
Keywords
Rift valley fever, seroprevalence, rainfall, Senegal, SOUTHERN MAURITANIA, ANTIBODY PREVALENCE, RUMINANTS, OUTBREAK, VIRUS, RISK

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Chicago
Thonnon, J, M Picquet, Y Thiongane, MA Lo, R Sylla, and Jozef Vercruysse. 1999. “Rift Valley Fever Surveillance in Lower Senegal River Basin : Update 10 Years After the Epidemic.” Tropical Medicine & International Health 4 (8): 580–585.
APA
Thonnon, J., Picquet, M., Thiongane, Y., Lo, M., Sylla, R., & Vercruysse, J. (1999). Rift valley fever surveillance in lower Senegal river basin : update 10 years after the epidemic. TROPICAL MEDICINE & INTERNATIONAL HEALTH, 4(8), 580–585.
Vancouver
1.
Thonnon J, Picquet M, Thiongane Y, Lo M, Sylla R, Vercruysse J. Rift valley fever surveillance in lower Senegal river basin : update 10 years after the epidemic. TROPICAL MEDICINE & INTERNATIONAL HEALTH. 1999;4(8):580–5.
MLA
Thonnon, J, M Picquet, Y Thiongane, et al. “Rift Valley Fever Surveillance in Lower Senegal River Basin : Update 10 Years After the Epidemic.” TROPICAL MEDICINE & INTERNATIONAL HEALTH 4.8 (1999): 580–585. Print.
@article{175534,
  abstract     = {After the Rift valley fever (RVF) epidemic of 1987 in the Senegal River Basin, RVF surveillance based on serosurveys has been conducted for 10 years. Serum samples were obtained from 1336 persons and from sheer and goats in selected areas, and these were tested for IgG/IgM RVF antibodies by ELISA. After a period of regular decrease in RVF prevalence in domestic animals until 1993, an epizootic was observed in all herds in 1994-95 with increases in IgM levels and abortions. During the same period, no human cases or RVF IgM were detected. The RVF Ige prevalence significantly correlated with dare of birth: children born after 1987 have a low prevalence (5%) in clear contrast to the older population (25.3%) in Podor district. A retrospective analysis of rainfall and RVF prevalence in small domestic animals over the last 10 years showed that the re-emergence correlated with heavy rainfall. A general analysis of the risk of re-emergence and the efficiency of this RVF surveillance system are presented.},
  author       = {Thonnon, J and Picquet, M and Thiongane, Y and Lo, MA and Sylla, R and Vercruysse, Jozef},
  issn         = {1360-2276},
  journal      = {TROPICAL MEDICINE & INTERNATIONAL HEALTH},
  keywords     = {Rift valley fever,seroprevalence,rainfall,Senegal,SOUTHERN MAURITANIA,ANTIBODY PREVALENCE,RUMINANTS,OUTBREAK,VIRUS,RISK},
  language     = {eng},
  number       = {8},
  pages        = {580--585},
  title        = {Rift valley fever surveillance in lower Senegal river basin : update 10 years after the epidemic},
  url          = {http://dx.doi.org/10.1046/j.1365-3156.1999.00437.x},
  volume       = {4},
  year         = {1999},
}

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