Richards FO, Boatin B, Sauerbrey M, Seketeli A, 2001. Control of onchocerciasis today: status and challenges. Trends Parasitol 17 :558–563.
World Health Organization, 2001. Certification of Elimination of Human Onchocerciasis: Criteria and Procedures. Geneva, Switzerland: World Health Organization.
World Health Organization, 2001. Criteria for Certification of Interruption of Transmission/Elimination of Human Onchocerciasis. Geneva, Switzerland: World Health Organization.
World Health Organization, 1995. Onchocerciasis and Its Control. Geneva, Switzerland: World Health Organization.
Martin-Tellaeche A, Ramirez-Hernandez J, Santos-Preciado JI, Mendez-Galvan J, 1998. Onchocerciasis: c hanges in transmission in Mexico. Ann Trop Med Parasitol 92 :S117–S119.
Rodriguez-Perez MA, Reyes-Villanueva F, 1994. The effect of ivermectin on the transmission of Onchocerca volvulus in Southern Mexico. Salud Publica Mex 36 :281–290.
Vásquez-Castellanos JL, 1991. Cafeticultura e historia social de la oncocercosis en el soconusco, estado de chiapas, méxico. Salud Pública de México 33 :124–135.
Davies JB, 1968. A Review of Past and Present Aspects of Simulium Control in Mexico Together With Recommendations for the Future Conduct of Control Schemes and an Outline of an Eradication Scheme in the North Focus of Onchocerciasis in Chiapas State. Washington, DC: Pan American Health Organization.
Rodríguez-Pérez MA, Lilley BG, Domínguez-Vázquez A, Segura-Arenas R, Lizarazo-Ortega C, Mendoza-Herrara A, Reyes-Villanueva F, Unnasch TR, 2004. Polymerase chain reaction monitoring of transmission of Onchocerca volvulus in two endemic states in Mexico. Am J Trop Med Hyg 70: 38–45.
Onchocerciasis Elimination Program of the Americas, 2001. Relatoría de la xi Conferencia Interamericana Sobre Oncocercosis. Mexico City, Mexico: Onchocerciasis Elimination Program for the Americas.
Walsh JF, Davies JB, Garms R, 1978. Standardization of criteria for assessing the effects of Simulium control in onchocerciasis control programs. Trans Roy Soc Trop Med Hyg 72: 675–676.
Rodriguez-Perez MA, Rodriguez MH, Margeli-Perez HM, Rivas-Alcala AR, 1995. Effect of semi-annual treatments of ivermectin on the prevalence and intensity of Onchocerca volvulus skin infection, ocular lesions, and infectivity of Simulium ochraceum populations in Southern Mexico. Am J Trop Med Hyg 52 :429–434.
Grillet ME, Basanez MG, Vivas-Martinez S, Villamizar N, Frontado H, Cortez J, Coronel P, Botto C, 2001. Human onchocerciasis in the Amazonian area of Southern Venezuela: Spatial and temporal variations in biting and parity rates of black fly (Siptera: Simuliidae) vectors. J Med Entomol 38 :520–530.
Toe L, Back C, Adjami AG, Tang JM, Unnasch TR, 1997. Onchocerca volvulus: Comparison of field collection methods for the preservation of parasite and vector samples for PCR analysis. Bull WHO 75 :443–447.
Guevara AG, Vieira JC, Lilley BG, López A, Vieira N, Rumbea J, Collins R, Unnasch TR, 2003. Entomolological evaluation by pool screen polymerase chain reaction of Onchocerca volvulus transmission in Ecuador following mass Mectizan distribution. Am J Trop Med Hyg 68 :222–227.
Katholi CR, Toé L, Merriweather A, Unnasch TR, 1995. Determining the prevalence of Onchocerca volvulus infection in vector populations by PCR screening of pools of black flies. J Infect Dis 172 :1414–1417.
Dadzie Y, Neira M, Hopkins D, 2003. Final report of the conference on the eradicability of onchocerciasis. Filaria J 2 :2.
Cupp EW, Ochoa AO, Collins RC, Ramberg FR, Zea G, 1989. The effect of multiple ivermectin treatments on infection of Simulium ochraceum with Onchocerca volvulus. Am J Trop Med Hyg 40 :501–506.
Ortega M, Oliver M, Ramirez A, 1992. Entomology of onchocercosis in Soconusco, Chiapas. 6. Quantitative studies of the transmission of Onchocerca volvulus by 3 species of Simuliidae in a community with high endemicity. Rev Latinoam Microbiol 34 :281–289.
Plaisier AP, van Oortmarssen GJ, Habbema JD, Remme J, Alley ES, 1990. Onchosim: A model and computer simulation program for the transmission and control of onchocerciasis. Comput Methods Programs Biomed 31 :43–56.
Dietz K, 1982. The population dynamics of onchocerciasis. Anderson RM, ed. The Population Dynamics of Infectious Diseases: Theory and Applications. London, UK: Chapman and Hall, 209–241.
Yang R, Berger J, 1997. A Catalog of Moninformative Priors. Durham, NC: ISDS, Duke University.
Hastings NA, Peacock JB, 1974. Statistical Distributions. New York: John Wiley and Sons.
Past two years | Past Year | Past 30 Days | |
---|---|---|---|
Abstract Views | 1371 | 1280 | 114 |
Full Text Views | 262 | 11 | 2 |
PDF Downloads | 63 | 15 | 2 |
To study the impact of mass Mectizan treatment on Onchocerca volvulus transmission in Mexico, entomological surveys were carried out in the endemic foci of Oaxaca, Southern Chiapas, and Northern Chiapas. Collected flies were screened by polymerase chain reaction (PCR) for O. volvulus parasites. The prevalence of infected and infective flies was estimated using the PoolScreen algorithm and with a novel probability-based method. O. volvulus infective larvae were not detected in flies from 6/13 communities. In 7/13 communities, infective flies were detected, with prevalences ranging from 1.6/10,000 to 29.0/10,000 and seasonal transmission potentials ranging from 0.4 to 3.3. Infected and infective flies were found in a community in Northern Chiapas, suggesting that, according to World Health Organization criteria, autochthonous transmission exists in this focus. These data suggest that O. volvulus transmission in Mexico has been suppressed or brought to a level that may be insufficient to sustain the parasite population.
Richards FO, Boatin B, Sauerbrey M, Seketeli A, 2001. Control of onchocerciasis today: status and challenges. Trends Parasitol 17 :558–563.
World Health Organization, 2001. Certification of Elimination of Human Onchocerciasis: Criteria and Procedures. Geneva, Switzerland: World Health Organization.
World Health Organization, 2001. Criteria for Certification of Interruption of Transmission/Elimination of Human Onchocerciasis. Geneva, Switzerland: World Health Organization.
World Health Organization, 1995. Onchocerciasis and Its Control. Geneva, Switzerland: World Health Organization.
Martin-Tellaeche A, Ramirez-Hernandez J, Santos-Preciado JI, Mendez-Galvan J, 1998. Onchocerciasis: c hanges in transmission in Mexico. Ann Trop Med Parasitol 92 :S117–S119.
Rodriguez-Perez MA, Reyes-Villanueva F, 1994. The effect of ivermectin on the transmission of Onchocerca volvulus in Southern Mexico. Salud Publica Mex 36 :281–290.
Vásquez-Castellanos JL, 1991. Cafeticultura e historia social de la oncocercosis en el soconusco, estado de chiapas, méxico. Salud Pública de México 33 :124–135.
Davies JB, 1968. A Review of Past and Present Aspects of Simulium Control in Mexico Together With Recommendations for the Future Conduct of Control Schemes and an Outline of an Eradication Scheme in the North Focus of Onchocerciasis in Chiapas State. Washington, DC: Pan American Health Organization.
Rodríguez-Pérez MA, Lilley BG, Domínguez-Vázquez A, Segura-Arenas R, Lizarazo-Ortega C, Mendoza-Herrara A, Reyes-Villanueva F, Unnasch TR, 2004. Polymerase chain reaction monitoring of transmission of Onchocerca volvulus in two endemic states in Mexico. Am J Trop Med Hyg 70: 38–45.
Onchocerciasis Elimination Program of the Americas, 2001. Relatoría de la xi Conferencia Interamericana Sobre Oncocercosis. Mexico City, Mexico: Onchocerciasis Elimination Program for the Americas.
Walsh JF, Davies JB, Garms R, 1978. Standardization of criteria for assessing the effects of Simulium control in onchocerciasis control programs. Trans Roy Soc Trop Med Hyg 72: 675–676.
Rodriguez-Perez MA, Rodriguez MH, Margeli-Perez HM, Rivas-Alcala AR, 1995. Effect of semi-annual treatments of ivermectin on the prevalence and intensity of Onchocerca volvulus skin infection, ocular lesions, and infectivity of Simulium ochraceum populations in Southern Mexico. Am J Trop Med Hyg 52 :429–434.
Grillet ME, Basanez MG, Vivas-Martinez S, Villamizar N, Frontado H, Cortez J, Coronel P, Botto C, 2001. Human onchocerciasis in the Amazonian area of Southern Venezuela: Spatial and temporal variations in biting and parity rates of black fly (Siptera: Simuliidae) vectors. J Med Entomol 38 :520–530.
Toe L, Back C, Adjami AG, Tang JM, Unnasch TR, 1997. Onchocerca volvulus: Comparison of field collection methods for the preservation of parasite and vector samples for PCR analysis. Bull WHO 75 :443–447.
Guevara AG, Vieira JC, Lilley BG, López A, Vieira N, Rumbea J, Collins R, Unnasch TR, 2003. Entomolological evaluation by pool screen polymerase chain reaction of Onchocerca volvulus transmission in Ecuador following mass Mectizan distribution. Am J Trop Med Hyg 68 :222–227.
Katholi CR, Toé L, Merriweather A, Unnasch TR, 1995. Determining the prevalence of Onchocerca volvulus infection in vector populations by PCR screening of pools of black flies. J Infect Dis 172 :1414–1417.
Dadzie Y, Neira M, Hopkins D, 2003. Final report of the conference on the eradicability of onchocerciasis. Filaria J 2 :2.
Cupp EW, Ochoa AO, Collins RC, Ramberg FR, Zea G, 1989. The effect of multiple ivermectin treatments on infection of Simulium ochraceum with Onchocerca volvulus. Am J Trop Med Hyg 40 :501–506.
Ortega M, Oliver M, Ramirez A, 1992. Entomology of onchocercosis in Soconusco, Chiapas. 6. Quantitative studies of the transmission of Onchocerca volvulus by 3 species of Simuliidae in a community with high endemicity. Rev Latinoam Microbiol 34 :281–289.
Plaisier AP, van Oortmarssen GJ, Habbema JD, Remme J, Alley ES, 1990. Onchosim: A model and computer simulation program for the transmission and control of onchocerciasis. Comput Methods Programs Biomed 31 :43–56.
Dietz K, 1982. The population dynamics of onchocerciasis. Anderson RM, ed. The Population Dynamics of Infectious Diseases: Theory and Applications. London, UK: Chapman and Hall, 209–241.
Yang R, Berger J, 1997. A Catalog of Moninformative Priors. Durham, NC: ISDS, Duke University.
Hastings NA, Peacock JB, 1974. Statistical Distributions. New York: John Wiley and Sons.
Past two years | Past Year | Past 30 Days | |
---|---|---|---|
Abstract Views | 1371 | 1280 | 114 |
Full Text Views | 262 | 11 | 2 |
PDF Downloads | 63 | 15 | 2 |