Volume 90, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



West Nile virus (WN virus) is one of the most widespread arbovirus and exhibits a great genetic diversity with 8 lineages, at least 4 (1, 2, Koutango, and putative new) are present in Africa. In West Africa, and are considered as potential vectors for WN virus transmission in sylvatic or urban context. We analyzed the vector competence of these species from Senegal for African lineages and envelope proteins sequences of viral strains used. We showed that lineage 1 is transmitted by both , whereas the putative new lineage 8 is transmitted only by . Our findings suggest that genetic variability can affect vector competence and depend on mosquito. However, when considering the infective life rate, the mosquito population seems to be inefficient for WN virus transmission in the field and could explain the low impact of WN virus in Africa.


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  1. Chambers TJ, Hahn CS, Galler R, Rice CM, , 1990. Flavivirus genome organization, expression, and replication. Annu Rev Microbiol 44: 649688.[Crossref] [Google Scholar]
  2. Kuno G, Chang GJ, Tsuchiya KR, Karabatsos N, Cropp CB, , 1998. Phylogeny of the genus Flavivirus . J Virol 72: 7383. [Google Scholar]
  3. Murray KO, Mertens E, Despres P, , 2010. West Nile virus and its emergence in the United States of America. Vet Res 41: 67.[Crossref] [Google Scholar]
  4. Smithburn KC, Hughs TP, Burke AW, Paul JH, , 1940. A neurotropic virus isolated from the blood of a native of Uganda. Am J Trop Med 20: 471492. [Google Scholar]
  5. Hubalek Z, Halouzka J, , 1999. West Nile fever a reemerging mosquito-borne viral disease in Europe. Emerg Infect Dis 5: 643650.[Crossref] [Google Scholar]
  6. Rappole JH, Hubalek Z, , 2003. Migratory birds and West Nile virus. J Appl Microbiol 94 (suppl): 47S58S.[Crossref] [Google Scholar]
  7. Hayes EB, Sejvar JJ, Zaki SR, Lanciotti RS, Bode AV, Campbell GL, , 2005. Virology, pathology, and clinical manifestations of West Nile virus disease. Emerg Infect Dis 11: 11741179.[Crossref] [Google Scholar]
  8. Fagbami A, , 1978. Human arthropod-borne virus infections in Nigeria. Serological and virological investigations and Shaki, Oyo State. J Hyg Epidemiol Microbiol Immunol 22: 184189. [Google Scholar]
  9. King NJ, Getts DR, Getts MT, Rana S, Shrestha B, Kesson AM, , 2007. Immunopathology of flavivirus infections. Immunol Cell Biol 85: 3342.[Crossref] [Google Scholar]
  10. ArboNET Arboviral Diseases Branch, Centers for Disease Control and Prevention, 2012. Final Maps and Data for 1999–2012. Available at: http://www.cdc.gov/westnile/statsMaps/final.html. Accessed June 26, 2013. [Google Scholar]
  11. Asnis DS, Conetta R, Waldman G, Teixeira AA, , 2001. The West Nile virus encephalitis outbreak in the United States (1999–2000): from Flushing, New York, to beyond its borders. Ann N Y Acad Sci 951: 161171.[Crossref] [Google Scholar]
  12. Nash D, Mostashari F, Fine A, Miller J, O'Leary D, Murray K, Huang A, Rosenberg A, Greenberg A, Sherman M, Wong S, Layton M, , 2001. West Nile Outbreak Response Working Group. The outbreak of West Nile virus infection in the New York City area in 1999. N Engl J Med 344: 18071814.[Crossref] [Google Scholar]
  13. Rossi SL, Ross TM, Evans JD, , 2010. West Nile virus. Clin Lab Med 30: 4765.[Crossref] [Google Scholar]
  14. Lim SM, Koraka P, Osterhaus AD, Martina BE, , 2011. West Nile virus: immunity and pathogenesis. Viruses 3: 811828.[Crossref] [Google Scholar]
  15. Mackenzie JS, Williams DT, , 2009. The zoonotic flaviviruses of southern, south-eastern and eastern Asia, and Australasia: the potential for emergent viruses. Zoonoses Public Health 56: 338356.[Crossref] [Google Scholar]
  16. Virus d'Afrique (base de données). Available at: http://www.pasteur.fr/recherche/banques/CRORA/. Accessed April 15, 2013. [Google Scholar]
  17. Venter M, Human S, van Niekerk S, Williams J, van Eeden C, Freeman F, , 2011. Fatal neurologic disease and abortion in mare infected with lineage 1 West Nile virus, South Africa. Emerg Infect Dis 17: 15341536. [Google Scholar]
  18. Hall RA, Scherret JH, Mackenzie JS, , 2001. Kunjin virus: an Australian variant of West Nile? Ann N Y Acad Sci 951: 153160.[Crossref] [Google Scholar]
  19. Lanciotti RS, Ebel GD, Deubel V, Kerst AJ, Murri S, Meyer R, Bowen M, McKinney N, Morrill WE, Crabtree MB, Kramer LD, Roehrig JT, , 2002. Complete genome sequences and phylogenetic analysis of West Nile virus strains isolated from the United States, Europe, and the Middle East. Virology 298: 96105.[Crossref] [Google Scholar]
  20. Lanciotti RS, Roehrig JT, Deubel V, Smith J, Parker M, Steele K, Crise B, Volpe KE, Crabtree MB, Scherret JH, Hall RA, MacKenzie JS, Cropp CB, Panigrahy B, Ostlund E, Schmitt B, Malkinson M, Banet C, Weissman J, Komar N, Savage HM, Stone W, McNamara T, Gubler DJ, , 1999. Origin of the West Nile virus responsible for an outbreak of encephalitis in the northeastern United States. Science 286: 23332337.[Crossref] [Google Scholar]
  21. Bakonyi T, Ivanics E, Erdélyi K, Ursu K, Ferenczi E, Weissenböck H, Nowotny N, , 2006. Lineage 1 and 2 strains of encephalitic West Nile virus, central Europe. Emerg Infect Dis 12: 618623.[Crossref] [Google Scholar]
  22. Papa A, Xanthopoulou K, Gewehr S, Mourelatos S, , 2011. Detection of West Nile virus lineage 2 in mosquitoes during a human outbreak in Greece. Clin Microbiol Infect 17: 11761180.[Crossref] [Google Scholar]
  23. Bagnarelli P, Marinelli K, Trotta D, Monachetti A, Tavio M, Del Gobbo R, Capobianchi M, Menzo S, Nicoletti L, Magurano F, Varaldo P, , 2011. Human case of autochthonous West Nile virus lineage 2 infection in Italy, September 2011. Euro Surveill 16: 20002. [Google Scholar]
  24. Botha EM, Markotter W, Wolfaardt M, Paweska JT, Swanepoel R, Palacios G, Nel LH, , 2008. Genetic determinants of virulence in pathogenic lineage 2 West Nile virus strains. Emerg Infect Dis 14: 222230.[Crossref] [Google Scholar]
  25. Charrel RN, Brault AC, Gallian P, Lemasson JJ, Murgue B, Murri S, Pastorino B, Zeller H, de Chesse R, de Micco P, de Lamballerie X, , 2003. Evolutionary relationship between Old World West Nile virus strains. Evidence for viral gene flow between Africa, the Middle East, and Europe. Virology 315: 381388.[Crossref] [Google Scholar]
  26. Shirato K, Miyoshi H, Goto A, Ako Y, Ueki T, Kariwa H, Takashima I, , 2004. Viral envelope protein glycosylation is a molecular determinant of the neuroinvasiveness of the New York strain of West Nile virus. J Gen Virol 85: 36373645.[Crossref] [Google Scholar]
  27. Moudy RM, Zhang B, Shi PY, Kramer LD, , 2009. West Nile virus envelope protein glycosylation is required for efficient viral transmission by Culex vectors. Virology 387: 222228.[Crossref] [Google Scholar]
  28. Hanna SL, Pierson TC, Sanchez MD, Ahmed AA, Murtadha MM, Doms RW, , 2005. N-linked glycosylation of West Nile virus envelope proteins influences particle assembly and infectivity. J Virol 9: 1326213274.[Crossref] [Google Scholar]
  29. Moudy RM, Payne AF, Dodson BL, Kramer LD, , 2011. Requirement of glycosylation of West Nile virus envelope protein for infection of, but not spread within, Culex quinquefasciatus mosquito vectors. Am J Trop Med Hyg 85: 374378.[Crossref] [Google Scholar]
  30. Solomon T, Ooi MH, Beasley DW, Mallewa M, , 2003. West Nile encephalitis. BMJ 326: 865869.[Crossref] [Google Scholar]
  31. Depoortere E, Kavle J, Keus K, Zeller H, Murri S, Legros D, , 2002. Outbreak of West Nile virus causing severe neurological involvement in children, Nuba Mountains, Sudan, 2002. Trop Med Int Health 9: 730736.[Crossref] [Google Scholar]
  32. Hachfi W, Bougmiza I, Bellazreg F, Bahri O, Kaabia N, Bahri F, Letaief A, , 2010. Second epidemic of West Nile virus meningoencephalitis in Tunisia. Med Mal Infect 40: 456461.[Crossref] [Google Scholar]
  33. Mostashari F, Bunning ML, Kitsutani PT, Singer DA, Nash D, Cooper MJ, Katz N, Liljebjelke KA, Biggerstaff BJ, Fine AD, Layton MC, Mullin SM, Johnson AJ, Martin DA, Hayes EB, Campbell GL, , 1999. Epidemic West Nile encephalitis, New York, 1999: results of a household-based seroepidemiological survey. Lancet 358: 261264.[Crossref] [Google Scholar]
  34. Hurlbut HS, Rizk F, Taylor RM, Work TH, , 1956. A study of the ecology of West Nile virus in Egypt. Am J Trop Med Hyg 5: 579620. [Google Scholar]
  35. Wang W, Sarkodie F, Danso K, Addo-Yobo E, Owusu-Ofori S, Allain JP, Li C, , 2009. Seroprevalence of West Nile virus in Ghana. Viral Immunol 22: 1722.[Crossref] [Google Scholar]
  36. Renaudet J, Jan C, Ridet J, Adam C, Robin Y, , 1978. A serological survey of arboviruses in the human population of Senegal. Bull Soc Pathol Exot 71: 131140. [Google Scholar]
  37. Traoré-Lamizana M, Fontenille D, Diallo M, Y, Zeller HG, Mondo M, Adam F, Thonon J, Maiga A, , 2001. Arbovirus surveillance from 1990 to 1995 in the Barkedji area (Ferlo) of Senegal, a possible natural focus of Rift Valley fever virus. J Med Entomol 38: 480492.[Crossref] [Google Scholar]
  38. Chevalier V, Dupressoir A, Tran A, Diop OM, Gottland C, Diallo M, Etter E, Ndiaye M, Grosbois V, Dia M, Gaidet N, Sall AA, Soti V, Niang M, , 2010. Environmental risk factors of West Nile virus infection of horses in the Senegal River basin. Epidemiol Infect 138: 16011609.[Crossref] [Google Scholar]
  39. Chevalier V, Reynaud P, Lefrançois T, Durand B, Baillon F, Balança G, Gaidet N, Mondet B, Lancelot R, , 2009. Predicting West Nile virus seroprevalence in wild birds in Senegal. Vector Borne Zoonotic Dis 9: 589596.[Crossref] [Google Scholar]
  40. Traore-Lamizana M, Zeller HG, Mondo M, Hervy JP, Adam F, Digoutte JP, , 1994. Isolations of West Nile and Bagaza viruses from mosquitoes (Diptera: Culicidae) in central Senegal (Ferlo). J Med Entomol 31: 934938.[Crossref] [Google Scholar]
  41. Mutebi JP, Crabtree MB, Kading RC, Powers AM, Lutwama JJ, Miller BR, , 2012. Mosquitoes of western Uganda. J Med Entomol 49: 12891306.[Crossref] [Google Scholar]
  42. Diallo M, Nabeth P, Ba K, Sall AA, Ba Y, Mondo M, Girault L, Abdalahi MO, Mathiot C, , 2005. Mosquito vectors of the 1998–1999 outbreak of Rift Valley Fever and other arboviruses (Bagaza, Sanar, Wesselsbron and West Nile) in Mauritania and Senegal. Med Vet Entomol 19: 119126.[Crossref] [Google Scholar]
  43. Diallo D, Talla C, Ba Y, Dia I, Sall AA, Diallo M, , 2011. Temporal distribution and spatial pattern of abundance of the Rift Valley fever and West Nile fever vectors in Barkedji, Senegal. J Vector Ecol 36: 426436.[Crossref] [Google Scholar]
  44. Fall AG, Diaïté A, Lancelot R, Tran A, Soti V, Etter E, Konaté L, Faye O, Bouyer J, , 2011. Feeding behavior of potential vectors of West Nile virus in Senegal. Parasit Vectors 4: 17.[Crossref] [Google Scholar]
  45. Gowda NN, Vijayan VA, , 1992. Indoor resting density, survival rate and host preference of Culex quinquefasciatus say (Diptera: Culicidae) in Mysore City. J Commun Dis 24: 2028. [Google Scholar]
  46. Lillibridge KM, Parsons R, Randle Y, Travassos da Rosa AP, Guzman H, Siirin M, Wuithiranyagool T, Hailey C, Higgs S, Bala AA, Pascua R, Meyer T, Vanlandingham DL, Tesh RB, , 2004. The 2002 introduction of West Nile virus into Harris County, Texas, an area historically endemic for St. Louis encephalitis. Am J Trop Med Hyg 70: 676681. [Google Scholar]
  47. Fonseca DM, Keyghobadi N, Malcolm CA, Mehmet C, Schaffner F, Mogi M, Fleischer RC, Wilkerson RC, , 2004. Emerging vectors in the Culex pipiens complex. Science 303: 15351538.[Crossref] [Google Scholar]
  48. Hamer GL, Kitron UD, Brawn JD, Loss SR, Ruiz MO, Goldberg TL, Walker ED, , 2008. Culex pipiens (Diptera: Culicidae): a bridge vector of West Nile virus to humans. J Med Entomol 45: 125128.[Crossref] [Google Scholar]
  49. Tamba M, Bonilauri P, Bellini R, Calzolari M, Albieri A, Sambri V, Dottori M, Angelini P, , 2011. Detection of Usutu virus within a West Nile virus surveillance program in Northern Italy. Vector Borne Zoonotic Dis 11: 551557.[Crossref] [Google Scholar]
  50. Gerberg EJ, Barnard DR, Ward RA, , 1994. Manual for Mosquito Rearing and Experimental Techniques. Am Mosq Control Assoc Bull 6162. [Google Scholar]
  51. Digoutte JP, Calvo-Wilson MA, Mondo M, Traore-Lamizana M, Adam F, , 1992. Continuous cell lines and immune ascitic fluid pools in arbovirus detection. Res Virol 143: 417422.[Crossref] [Google Scholar]
  52. De Madrid AT, Porterfield JS, , 1969. A simple micro-culture method for the study of group B arboviruses. Bull World Health Organ 40: 113121. [Google Scholar]
  53. Tamura K, Peterson D, Peterson N, Stecher G, Nei M, , 2011. Phylogenetic and molecular evolutionary analyses were conducted using MEGA version 5. Mol Biol Evol 28: 27312739.[Crossref] [Google Scholar]
  54. Jupp PG, McIntosh BM, Blackburn NK, , 1986. Experimental assessment of the vector competence of Culex (Culex) neavei Theobald with West Nile and Sindbis viruses in South Africa. Trans R Soc Trop Med Hyg 80: 226230.[Crossref] [Google Scholar]
  55. Balenghien T, Vazeille M, Grandadam M, Schaffner F, Zeller H, Reiter P, Sabatier P, Fouque F, Bicout DJ, , 2008. Vector competence of some French Culex and Aedes mosquitoes for West Nile virus. Vector Borne Zoonotic Dis 8: 589595.[Crossref] [Google Scholar]
  56. Kramer LD, Chin P, Cane RP, Kauffman EB, Mackereth G, , 2011. Vector competence of New Zealand mosquitoes for selected arboviruses. Am J Trop Med Hyg 85: 182189.[Crossref] [Google Scholar]
  57. Lutomiah JL, Koka H, Mutisya J, Yalwala S, Muthoni M, Makio A, Limbaso S, Musila L, Clark JW, Turell MJ, Kioko E, Schnabel D, Sang RC, , 2011. Ability of selected Kenyan mosquito (Diptera: Culicidae) species to transmit West Nile virus under laboratory conditions. J Med Entomol 48: 11971201.[Crossref] [Google Scholar]
  58. Richards SL, Lord CC, Pesko KN, Tabachnick WJ, , 2010. Environmental and biological factors influencing Culex pipiens quinquefasciatus (Diptera: Culicidae) vector competence for West Nile virus. Am J Trop Med Hyg 83: 126134.[Crossref] [Google Scholar]
  59. Eastwood G, Kramer LD, Goodman SJ, Cunningham AA, , 2011. West Nile virus vector competency of Culex quinquefasciatus mosquitoes in the Galapagos Islands. Am J Trop Med Hyg 85: 426433.[Crossref] [Google Scholar]
  60. Hubálek Z, Halouzka J, Juricová Z, Sebesta O, , 1998. First isolation of mosquito-borne West Nile virus in the Czech Republic. Acta Virol 42: 119120. [Google Scholar]
  61. Aliota MT, Jones SA, Dupuis AP, 2nd Ciota AT, Hubalek Z, Kramer LD, , 2012. Characterization of Rabensburg virus, a flavivirus closely related to West Nile virus of the Japanese encephalitis antigen group. PLoS ONE 7: e39387.[Crossref] [Google Scholar]
  62. Berthet FX, Zeller HG, Drouet MT, Rauzier J, Digoutte JP, Deubel V, , 1997. Extensive nucleotide changes and deletions within the envelope glycoprotein gene of Euro-African West Nile viruses. J Gen Virol 78: 22932297.[Crossref] [Google Scholar]
  63. Elizondo-Quiroga A, Flores-Suarez A, Elizondo-Quiroga D, Ponce-Garcia G, Blitvich BJ, Contreras-Cordero JF, Gonzalez-Rojas JI, Mercado-Hernandez R, Beaty BJ, Fernandez-Salas I, , 2006. Gonotrophic cycle and survivorship of Culex quinquefasciatus (Diptera: Culicidae) using sticky ovitraps in Monterrey, northeastern Mexico. Am J Mosq Control Assoc 22: 1014.[Crossref] [Google Scholar]
  64. Lvov DK, Butenko AM, Gromashevsky VL, Kovtunov AI, Prilipov AG, Kinney R, Aristova VA, Dzharkenov AF, Samokhvalov EI, Savage HM, Shchelkanov MY, Galkina IV, Deryabin PG, Gubler DJ, Kulikova LN, Alkhovsky SK, Moskvina TM, Zlobina LV, Sadykova GK, Shatalov AG, Lvov DN, Usachev VE, Voronina AG, , 2004. West Nile virus and other zoonotic viruses in Russia: examples of emerging-reemerging situations. Arch Virol Suppl 18: 8596. [Google Scholar]
  65. Bowden SE, Magori K, Drake JM, , 2011. Regional differences in the association between land cover and West Nile virus disease incidence in humans in the United States. Am J Trop Med Hyg 84: 234238.[Crossref] [Google Scholar]

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  • Received : 11 Jul 2013
  • Accepted : 21 Jan 2014
  • Published online : 02 Apr 2014

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