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Dr Bernard Achero Okech

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    Collapse Bibliographic 
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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Weppelmann TA, Burne A, von Fricken ME, Elbadry MA, Beau De Rochars M, Boncy J, Okech BA. A Tale of Two Flaviviruses: A Seroepidemiological Study of Dengue Virus and West Nile Virus Transmission in the Ouest and Sud-Est Departments of Haiti. Am J Trop Med Hyg. 2017 Jan 11; 96(1):135-140. PMID: 27879463.
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    2. Weppelmann TA, von Fricken ME, Lam B, Telisma T, Existe A, Lemoine JF, Larkin J, Okech BA. Sparse serological evidence of Plasmodium vivax transmission in the Ouest and Sud-Est departments of Haiti. Acta Trop. 2016 Oct; 162:27-34. PMID: 27230796.
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    3. Elbadry MA, Al-Khedery B, Tagliamonte MS, Yowell CA, Raccurt CP, Existe A, Boncy J, Weppelmann TA, Beau De Rochars VE, Lemoine JF, Okech BA, Dame JB. High prevalence of asymptomatic malaria infections: a cross-sectional study in rural areas in six departments in Haiti. Malar J. 2015 Dec 21; 14:510. PMID: 26689195.
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    4. Carter TE, Malloy H, Existe A, Memnon G, St Victor Y, Okech BA, Mulligan CJ. Genetic Diversity of Plasmodium falciparum in Haiti: Insights from Microsatellite Markers. PLoS One. 2015; 10(10):e0140416. PMID: 26462203.
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    5. Boncy PJ, Adrien P, Lemoine JF, Existe A, Henry PJ, Raccurt C, Brasseur P, Fenelon N, Dame JB, Okech BA, Kaljee L, Baxa D, Prieur E, El Badry MA, Tagliamonte MS, Mulligan CJ, Carter TE, Beau de Rochars VM, Lutz C, Parke DM, Zervos MJ. Malaria elimination in Haiti by the year 2020: an achievable goal? Malar J. 2015 Jun 05; 14:237. PMID: 26043728.
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    6. Beau De Rochars VEM, Alam MT, Telisma T, Masse R, Chavannes S, Anilis MG, Guillaume HJ, Gelin G, Kirkpatrick EL, Okech BA, Weppelmann TA, Rashid M, Karst S, Johnson JA, Ali A, Morris JG. Spectrum of outpatient illness in a school-based cohort in Haiti, with a focus on diarrheal pathogens. Am J Trop Med Hyg. 2015 Apr; 92(4):752-757. PMID: 25732684.
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    7. Carter TE, Boulter A, Existe A, Romain JR, St Victor JY, Mulligan CJ, Okech BA. Artemisinin resistance-associated polymorphisms at the K13-propeller locus are absent in Plasmodium falciparum isolates from Haiti. Am J Trop Med Hyg. 2015 Mar; 92(3):552-4. PMID: 25646258.
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    8. Okech BA, Existe A, Romain JR, Memnon G, Victor YS, de Rochars MB, Fukuda M. Therapeutic efficacy of chloroquine for the treatment of uncomplicated Plasmodium falciparum in Haiti after many decades of its use. Am J Trop Med Hyg. 2015 Mar; 92(3):541-5. PMID: 25601993.
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    9. Messenger AM, Barr KL, Weppelmann TA, Barnes AN, Anderson BD, Okech BA, Focks DA. Serological evidence of ongoing transmission of dengue virus in permanent residents of Key West, Florida. Vector Borne Zoonotic Dis. 2014 Nov; 14(11):783-7. PMID: 25409268.
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    10. von Fricken ME, Weppelmann TA, Lam B, Eaton WT, Schick L, Masse R, Beau De Rochars MV, Existe A, Larkin J, Okech BA. Age-specific malaria seroprevalence rates: a cross-sectional analysis of malaria transmission in the Ouest and Sud-Est departments of Haiti. Malar J. 2014 Sep 14; 13:361. PMID: 25218803.
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    11. Carter TE, von Fricken M, Romain JR, Memnon G, St Victor Y, Schick L, Okech BA, Mulligan CJ. Detection of sickle cell hemoglobin in Haiti by genotyping and hemoglobin solubility tests. Am J Trop Med Hyg. 2014 Aug; 91(2):406-11. PMID: 24957539.
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    12. Carter TE, Maloy H, von Fricken M, St Victor Y, Romain JR, Okech BA, Mulligan CJ. Glucose-6-phosphate dehydrogenase deficiency A- variant in febrile patients in Haiti. Am J Trop Med Hyg. 2014 Aug; 91(2):412-4. PMID: 24891465.
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    13. von Fricken ME, Weppelmann TA, Eaton WT, Masse R, Beau de Rochars MV, Okech BA. Performance of the CareStart glucose-6-phosphate dehydrogenase (G6PD) rapid diagnostic test in Gressier, Haiti. Am J Trop Med Hyg. 2014 Jul; 91(1):77-80. PMID: 24778197.
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    14. von Fricken ME, Weppelmann TA, Eaton WT, Alam MT, Carter TE, Schick L, Masse R, Romain JR, Okech BA. Prevalence of glucose-6-phosphate dehydrogenase (G6PD) deficiency in the Ouest and Sud-Est departments of Haiti. Acta Trop. 2014 Jul; 135:62-6. PMID: 24681219.
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    15. Elbadry MA, Existe A, Victor YS, Memnon G, Fukuda M, Dame JB, Yowell CA, Okech BA. Survey of Plasmodium falciparum multidrug resistance-1 and chloroquine resistance transporter alleles in Haiti. Malar J. 2013 Nov 19; 12:426. PMID: 24252305.
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    16. von Fricken ME, Weppelmann TA, Hosford JD, Existe A, Okech BA. Malaria treatment policies and drug efficacy in Haiti from 1955-2012. J Pharm Policy Pract. 2013; 6:10. PMID: 25848539.
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    17. Weppelmann TA, Carter TE, Chen Z, von Fricken ME, Victor YS, Existe A, Okech BA. High frequency of the erythroid silent Duffy antigen genotype and lack of Plasmodium vivax infections in Haiti. Malar J. 2013 Jan 24; 12:30. PMID: 23347639.
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    18. Carter TE, Warner M, Mulligan CJ, Existe A, Victor YS, Memnon G, Boncy J, Oscar R, Fukuda MM, Okech BA. Evaluation of dihydrofolate reductase and dihydropteroate synthetase genotypes that confer resistance to sulphadoxine-pyrimethamine in Plasmodium falciparum in Haiti. Malar J. 2012 Aug 13; 11:275. PMID: 22889367.
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    19. Sterling KM, Okech BA, Xiang MA, Linser PJ, Price DA, Vanekeris L, Becnel JJ, Harvey WR. High affinity (3)H-phenylalanine uptake by brush border membrane vesicles from whole larvae of Aedes aegypti (AaBBMVw). J Insect Physiol. 2012 Apr; 58(4):580-9. PMID: 22251673.
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    20. Harvey WR, Okech BA, Linser PJ, Becnel JJ, Ahearn GA, Sterling KM. H(+) V-ATPase-energized transporters in brush border membrane vesicles from whole larvae of Aedes aegypti. J Insect Physiol. 2010 Oct; 56(10):1377-89. PMID: 20435040.
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    21. Harvey WR, Boudko DY, Rheault MR, Okech BA. NHE(VNAT): an H+ V-ATPase electrically coupled to a Na+:nutrient amino acid transporter (NAT) forms an Na+/H+ exchanger (NHE). J Exp Biol. 2009 Feb; 212(Pt 3):347-57. PMID: 19151209.
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    22. Okech BA, Mwobobia IK, Kamau A, Muiruri S, Mutiso N, Nyambura J, Mwatele C, Amano T, Mwandawiro CS. Use of integrated malaria management reduces malaria in Kenya. PLoS One. 2008; 3(12):e4050. PMID: 19115000.
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    23. Smith KE, VanEkeris LA, Okech BA, Harvey WR, Linser PJ. Larval anopheline mosquito recta exhibit a dramatic change in localization patterns of ion transport proteins in response to shifting salinity: a comparison between anopheline and culicine larvae. J Exp Biol. 2008 Oct; 211(Pt 19):3067-76. PMID: 18805805.
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    24. Okech BA, Meleshkevitch EA, Miller MM, Popova LB, Harvey WR, Boudko DY. Synergy and specificity of two Na+-aromatic amino acid symporters in the model alimentary canal of mosquito larvae. J Exp Biol. 2008 May; 211(Pt 10):1594-602. PMID: 18456887.
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    25. Okech BA, Boudko DY, Linser PJ, Harvey WR. Cationic pathway of pH regulation in larvae of Anopheles gambiae. J Exp Biol. 2008 Mar; 211(Pt 6):957-68. PMID: 18310121.
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    26. Rheault MR, Okech BA, Keen SB, Miller MM, Meleshkevitch EA, Linser PJ, Boudko DY, Harvey WR. Molecular cloning, phylogeny and localization of AgNHA1: the first Na+/H+ antiporter (NHA) from a metazoan, Anopheles gambiae. J Exp Biol. 2007 Nov; 210(Pt 21):3848-61. PMID: 17951426.
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    27. Okech BA, Gouagna LC, Yan G, Githure JI, Beier JC. Larval habitats of Anopheles gambiae s.s. (Diptera: Culicidae) influences vector competence to Plasmodium falciparum parasites. Malar J. 2007 Apr 30; 6:50. PMID: 17470293.
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    28. Mujuzi G, Magambo B, Okech B, Egwang TG. Pigmented monocytes are negative correlates of protection against severe and complicated malaria in Ugandan children. Am J Trop Med Hyg. 2006 May; 74(5):724-9. PMID: 16687669.
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    29. Okech B, Mujuzi G, Ogwal A, Shirai H, Horii T, Egwang TG. High titers of IgG antibodies against Plasmodium falciparum serine repeat antigen 5 (SERA5) are associated with protection against severe malaria in Ugandan children. Am J Trop Med Hyg. 2006 Feb; 74(2):191-7. PMID: 16474069.
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    30. Okech B, Arai M, Matsuoka H. The effects of blood feeding and exogenous supply of tryptophan on the quantities of xanthurenic acid in the salivary glands of Anopheles stephensi (Diptera: Culicidae). Biochem Biophys Res Commun. 2006 Mar 24; 341(4):1113-8. PMID: 16469295.
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    31. Okech BA, Gouagna LC, Kabiru EW, Beier JC, Yan G, Githure JI. Influence of age and previous diet of Anopheles gambiae on the infectivity of natural Plasmodium falciparum gametocytes from human volunteers. J Insect Sci. 2004; 4:33. PMID: 15861248.
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    32. Okech BA, Gouagna LC, Walczak E, Kabiru EW, Beier JC, Yan G, Githure JI. The development of Plasmodium falciparum in experimentally infected Anopheles gambiae (Diptera: Culicidae) under ambient microhabitat temperature in western Kenya. Acta Trop. 2004 Oct; 92(2):99-108. PMID: 15350861.
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    33. Okech BA, Gouagna LC, Kabiru EW, Walczak E, Beier JC, Yan G, Githure JI. Resistance of early midgut stages of natural Plasmodium falciparum parasites to high temperatures in experimentally infected Anopheles gambiae (Diptera: Culicidae). J Parasitol. 2004 Aug; 90(4):764-8. PMID: 15357066.
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    34. Bousema JT, Gouagna LC, Drakeley CJ, Meutstege AM, Okech BA, Akim IN, Beier JC, Githure JI, Sauerwein RW. Plasmodium falciparum gametocyte carriage in asymptomatic children in western Kenya. Malar J. 2004 Jun 17; 3:18. PMID: 15202944.
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    35. Okech BA, Corran PH, Todd J, Joynson-Hicks A, Uthaipibull C, Egwang TG, Holder AA, Riley EM. Fine specificity of serum antibodies to Plasmodium falciparum merozoite surface protein, PfMSP-1(19), predicts protection from malaria infection and high-density parasitemia. Infect Immun. 2004 Mar; 72(3):1557-67. PMID: 14977962.
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    36. Gouagna LC, Ferguson HM, Okech BA, Killeen GF, Kabiru EW, Beier JC, Githure JI, Yan G. Plasmodium falciparum malaria disease manifestations in humans and transmission to Anopheles gambiae: a field study in Western Kenya. Parasitology. 2004 Mar; 128(Pt 3):235-43. PMID: 15074873.
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    37. Gouagna LC, Okech BA, Kabiru EW, Killeen GF, Obare P, Ombonya S, Bier JC, Knols BG, Githure JI, Yan G. Infectivity of Plasmodium falciparum gametocytes in patients attending rural health centres in western Kenya. East Afr Med J. 2003 Dec; 80(12):627-34. PMID: 15018419.
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    38. Okech BA, Gouagna LC, Killeen GF, Knols BG, Kabiru EW, Beier JC, Yan G, Githure JI. Influence of sugar availability and indoor microclimate on survival of Anopheles gambiae (Diptera: Culicidae) under semifield conditions in western Kenya. J Med Entomol. 2003 Sep; 40(5):657-63. PMID: 14596279.
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    39. Aoki S, Li J, Itagaki S, Okech BA, Egwang TG, Matsuoka H, Palacpac NM, Mitamura T, Horii T. Serine repeat antigen (SERA5) is predominantly expressed among the SERA multigene family of Plasmodium falciparum, and the acquired antibody titers correlate with serum inhibition of the parasite growth. J Biol Chem. 2002 Dec 06; 277(49):47533-40. PMID: 12244052.
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    40. Okech BA, Nalunkuma A, Okello D, Pang XL, Suzue K, Li J, Horii T, Egwang TG. Natural human immunoglobulin G subclass responses to Plasmodium falciparum serine repeat antigen in Uganda. Am J Trop Med Hyg. 2001 Dec; 65(6):912-7. PMID: 11791998.
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