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Africa Centres for Disease Control and Prevention's framework for antimicrobial resistance control in Africa.

Varma JK, Oppong-Otoo J, Ondoa P, Perovic O, Park BJ, Laxminarayan R, Peeling RW, Schultsz C, Li H, Ihekweazu C, Sall AA, Jaw B, Nkengasong JN.

Afr J Lab Med. 2018 Dec 6;7(2):830. doi: 10.4102/ajlm.v7i2.830. eCollection 2018. No abstract available.


Diagnosis of Human Immunodeficiency Virus Infection.

Parekh BS, Ou CY, Fonjungo PN, Kalou MB, Rottinghaus E, Puren A, Alexander H, Hurlston Cox M, Nkengasong JN.

Clin Microbiol Rev. 2018 Nov 28;32(1). pii: e00064-18. doi: 10.1128/CMR.00064-18. Print 2019 Jan. Review.


Laboratory medicine in Africa since 2008: then, now, and the future.

Nkengasong JN, Mbopi-Keou FX, Peeling RW, Yao K, Zeh CE, Schneidman M, Gadde R, Abimiku A, Onyebujoh P, Birx D, Hader S.

Lancet Infect Dis. 2018 Nov;18(11):e362-e367. doi: 10.1016/S1473-3099(18)30120-8. Epub 2018 Jul 3. Review.


Response to the Ebola virus disease outbreak in the Democratic Republic of the Congo.

Nkengasong JN, Onyebujoh P.

Lancet. 2018 Jun 16;391(10138):2395-2398. doi: 10.1016/S0140-6736(18)31326-6. No abstract available.


Laboratory medicine in low-income and middle-income countries: progress and challenges.

Nkengasong JN, Yao K, Onyebujoh P.

Lancet. 2018 May 12;391(10133):1873-1875. doi: 10.1016/S0140-6736(18)30308-8. Epub 2018 Mar 15. No abstract available.


The diagnostic-clinical chasm: Work in progress?

Nkengasong JN.

Afr J Lab Med. 2016 Oct 31;5(1):586. doi: 10.4102/ajlm.v5i1.586. eCollection 2016. No abstract available.


Laboratory evaluation of the Chembio Dual Path Platform HIV-Syphilis Assay.

Kalou MB, Castro A, Watson A, Jost H, Clay S, Tun Y, Chen C, Karem K, Nkengasong JN, Ballard R, Parekh B.

Afr J Lab Med. 2016 Sep 15;5(1):433. doi: 10.4102/ajlm.v5i1.433. eCollection 2016.


Specimen origin, type and testing laboratory are linked to longer turnaround times for HIV viral load testing in Malawi.

Minchella PA, Chipungu G, Kim AA, Sarr A, Ali H, Mwenda R, Nkengasong JN, Singer D.

PLoS One. 2017 Feb 24;12(2):e0173009. doi: 10.1371/journal.pone.0173009. eCollection 2017.


Combatting Global Infectious Diseases: A Network Effect of Specimen Referral Systems.

Fonjungo PN, Alemnji GA, Kebede Y, Opio A, Mwangi C, Spira TJ, Beard RS, Nkengasong JN.

Clin Infect Dis. 2017 Feb 13. doi: 10.1093/cid/ciw817. [Epub ahead of print]


Establishing the Africa Centres for Disease Control and Prevention: responding to Africa's health threats.

Nkengasong JN, Maiyegun O, Moeti M.

Lancet Glob Health. 2017 Mar;5(3):e246-e247. doi: 10.1016/S2214-109X(17)30025-6. Epub 2017 Jan 18. No abstract available.


Implementation science: the laboratory as a command centre.

Boeras DI, Nkengasong JN, Peeling RW.

Curr Opin HIV AIDS. 2017 Mar;12(2):171-174. doi: 10.1097/COH.0000000000000349. Review.


Improving laboratory efficiencies to scale-up HIV viral load testing.

Alemnji G, Onyebujoh P, Nkengasong JN.

Curr Opin HIV AIDS. 2017 Mar;12(2):165-170. doi: 10.1097/COH.0000000000000346. Review.


Early antiretroviral therapy initiation: access and equity of viral load testing for HIV treatment monitoring.

Peter T, Ellenberger D, Kim AA, Boeras D, Messele T, Roberts T, Stevens W, Jani I, Abimiku A, Ford N, Katz Z, Nkengasong JN.

Lancet Infect Dis. 2017 Jan;17(1):e26-e29. doi: 10.1016/S1473-3099(16)30212-2. Epub 2016 Oct 20. Review.


A Proposed Framework for the Implementation of Early Infant Diagnosis Point-of-Care.

Diallo K, Modi S, Hurlston M, Beard RS, Nkengasong JN.

AIDS Res Hum Retroviruses. 2017 Mar;33(3):203-210. doi: 10.1089/AID.2016.0021. Epub 2016 Nov 17.


HIV testing and human rights: the right to the right test.

Nkengasong JN, Parekh BS, Hader SL.

Lancet HIV. 2016 Oct;3(10):e457-8. doi: 10.1016/S2352-3018(16)30160-6. No abstract available.


Improved Specimen-Referral System and Increased Access to Quality Laboratory Services in Ethiopia: The Role of the Public-Private Partnership.

Kebede Y, Fonjungo PN, Tibesso G, Shrivastava R, Nkengasong JN, Kenyon T, Kebede A, Gadde R, Ayana G.

J Infect Dis. 2016 Apr 15;213 Suppl 2:S59-64. doi: 10.1093/infdis/jiv576.


Strengthening the Tuberculosis Specimen Referral Network in Uganda: The Role of Public-Private Partnerships.

Joloba M, Mwangi C, Alexander H, Nadunga D, Bwanga F, Modi N, Downing R, Nabasirye A, Adatu FE, Shrivastava R, Gadde R, Nkengasong JN.

J Infect Dis. 2016 Apr 15;213 Suppl 2:S41-6. doi: 10.1093/infdis/jiw035.


Importance of Public-Private Partnerships: Strengthening Laboratory Medicine Systems and Clinical Practice in Africa.

Shrivastava R, Gadde R, Nkengasong JN.

J Infect Dis. 2016 Apr 15;213 Suppl 2:S35-40. doi: 10.1093/infdis/jiv574.


Molecular Epidemiology and Transmission Dynamics of Recent and Long-Term HIV-1 Infections in Rural Western Kenya.

Zeh C, Inzaule SC, Ondoa P, Nafisa LG, Kasembeli A, Otieno F, Vandenhoudt H, Amornkul PN, Mills LA, Nkengasong JN.

PLoS One. 2016 Feb 12;11(2):e0147436. doi: 10.1371/journal.pone.0147436. eCollection 2016.


Ensuring quality: a key consideration in scaling-up HIV-related point-of-care testing programs.

Fonjungo PN, Osmanov S, Kuritsky J, Ndihokubwayo JB, Bachanas P, Peeling RW, Timperi R, Fine G, Stevens W, Habiyambere V, Nkengasong JN.

AIDS. 2016 May 15;30(8):1317-23. doi: 10.1097/QAD.0000000000001031.


Are post-Ebola reconstruction efforts neglecting public health laboratory systems?

Nkengasong JN, Skaggs BA.

Lancet Glob Health. 2015 Nov;3(11):e678. doi: 10.1016/S2214-109X(15)00159-X. No abstract available.


Access and Quality of HIV-Related Point-of-Care Diagnostic Testing in Global Health Programs.

Fonjungo PN, Boeras DI, Zeh C, Alexander H, Parekh BS, Nkengasong JN.

Clin Infect Dis. 2016 Feb 1;62(3):369-374. doi: 10.1093/cid/civ866. Epub 2015 Sep 30. Review.


Monitoring the quality of HIV-1 viral load testing through a proficiency testing program using dried tube specimens in resource-limited settings.

Nguyen S, Ramos A, Chang J, Li B, Shanmugam V, Boeras D, Nkengasong JN, Yang C, Ellenberger D.

J Clin Microbiol. 2015 Apr;53(4):1129-36. doi: 10.1128/JCM.02780-14. Epub 2015 Jan 21.


A comprehensive review of the SLMTA literature part 2: Measuring success.

Luman ET, Yao K, Nkengasong JN.

Afr J Lab Med. 2014 Nov 3;3(2):276. doi: 10.4102/ajlm.v3i2.276. eCollection 2014. Review.


A comprehensive review of the SLMTA literature part 1: Content analysis and future priorities.

Luman ET, Yao K, Nkengasong JN.

Afr J Lab Med. 2014 Nov 3;3(2):265. doi: 10.4102/ajlm.v3i2.265. eCollection 2014. Review.


Poor performance of the determine HIV-1/2 Ag/Ab combo fourth-generation rapid test for detection of acute infections in a National Household Survey in Swaziland.

Duong YT, Mavengere Y, Patel H, Moore C, Manjengwa J, Sibandze D, Rasberry C, Mlambo C, Li Z, Emel L, Bock N, Moore J, Nkambule R, Justman J, Reed J, Bicego G, Ellenberger DL, Nkengasong JN, Parekh BS.

J Clin Microbiol. 2014 Oct;52(10):3743-8. doi: 10.1128/JCM.01989-14. Epub 2014 Aug 13.


Quality matters in strengthening global laboratory medicine.

Nkengasong JN, Birx D.

Afr J Lab Med. 2014;3(2):239. Epub 2014 Nov 3. No abstract available.


The SLMTA programme: Transforming the laboratory landscape in developing countries.

Yao K, Maruta T, Luman ET, Nkengasong JN.

Afr J Lab Med. 2014;3(3). doi: 10.4102/ajlm.v3i2.194. Epub 2014 Sep 16.


Molecular characterization of ambiguous mutations in HIV-1 polymerase gene: implications for monitoring HIV infection status and drug resistance.

Zheng DP, Rodrigues M, Bile E, Nguyen DB, Diallo K, DeVos JR, Nkengasong JN, Yang C.

PLoS One. 2013 Oct 17;8(10):e77649. doi: 10.1371/journal.pone.0077649. eCollection 2013.


Field expansion of DNA polymerase chain reaction for early infant diagnosis of HIV-1: The Ethiopian experience.

Fonjungo PN, Girma M, Melaku Z, Mekonen T, Tanuri A, Hailegiorgis B, Tegbaru B, Mengistu Y, Ashenafi A, Mamo W, Abreha T, Tibesso G, Ramos A, Ayana G, Freeman R, Nkengasong JN, Zewdu S, Kebede Y, Abebe A, Kenyon TA, Messele T.

Afr J Lab Med. 2013 Mar;2(1):31. Epub 2013 May 22.


Evaluation of quantification of HIV-1 RNA viral load in plasma and dried blood spots by use of the semiautomated Cobas Amplicor assay and the fully automated Cobas Ampliprep/TaqMan assay, version 2.0, in Kisumu, Kenya.

Ouma KN, Basavaraju SV, Okonji JA, Williamson J, Thomas TK, Mills LA, Nkengasong JN, Zeh C.

J Clin Microbiol. 2013 Apr;51(4):1208-18. doi: 10.1128/JCM.03048-12. Epub 2013 Feb 6.


Generation of dried tube specimen for HIV-1 viral load proficiency test panels: a cost-effective alternative for external quality assessment programs.

Ramos A, Nguyen S, Garcia A, Subbarao S, Nkengasong JN, Ellenberger D.

J Virol Methods. 2013 Mar;188(1-2):1-5. doi: 10.1016/j.jviromet.2012.11.036. Epub 2012 Dec 7.


HIV type 1 virological response and prevalence of HIV type 1 drug resistance among patients receiving antiretroviral therapy, Shandong, China.

Zhang J, Kang D, Lin B, Sun X, Fu J, Bi Z, Nkengasong JN, Yang C.

AIDS Res Hum Retroviruses. 2012 Dec;28(12):1658-65. doi: 10.1089/AID.2012.0019. Epub 2012 Jun 11.


Strengthening national laboratory health systems in the Caribbean Region.

Alemnji GA, Branch S, Best A, Kalou M, Parekh B, Waruiru W, Milstrey E, Conn W, Nkengasong JN, Lecher S.

Glob Public Health. 2012;7(6):648-60. doi: 10.1080/17441692.2012.670861. Epub 2012 Apr 23.


Detection of recent HIV-1 infection using a new limiting-antigen avidity assay: potential for HIV-1 incidence estimates and avidity maturation studies.

Duong YT, Qiu M, De AK, Jackson K, Dobbs T, Kim AA, Nkengasong JN, Parekh BS.

PLoS One. 2012;7(3):e33328. doi: 10.1371/journal.pone.0033328. Epub 2012 Mar 27.


HIV testing in developing countries: what is required?

Alemnji G, Nkengasong JN, Parekh BS.

Indian J Med Res. 2011 Dec;134(6):779-86. doi: 10.4103/0971-5916.92625. Review.


Laboratory equipment maintenance: a critical bottleneck for strengthening health systems in sub-Saharan Africa?

Fonjungo PN, Kebede Y, Messele T, Ayana G, Tibesso G, Abebe A, Nkengasong JN, Kenyon T.

J Public Health Policy. 2012 Feb;33(1):34-45. doi: 10.1057/jphp.2011.57. Epub 2011 Nov 10. Review.


Performance of six commercial enzyme immunoassays and two alternative HIV-testing algorithms for the diagnosis of HIV-1 infection in Kisumu, Western Kenya.

Zeh C, Oyaro B, Vandenhoudt H, Amornkul P, Kasembeli A, Bondo P, Mwaengo D, Thomas TK, Hart C, Laserson KF, Ondoa P, Nkengasong JN.

J Virol Methods. 2011 Sep;176(1-2):24-31. doi: 10.1016/j.jviromet.2011.05.021. Epub 2011 May 27.


HIV-1 drug resistance emergence among breastfeeding infants born to HIV-infected mothers during a single-arm trial of triple-antiretroviral prophylaxis for prevention of mother-to-child transmission: a secondary analysis.

Zeh C, Weidle PJ, Nafisa L, Lwamba HM, Okonji J, Anyango E, Bondo P, Masaba R, Fowler MG, Nkengasong JN, Thigpen MC, Thomas T.

PLoS Med. 2011 Mar;8(3):e1000430. doi: 10.1371/journal.pmed.1000430. Epub 2011 Mar 29.


Low CD4+ T cell counts among African HIV-1 infected subjects with group B KIR haplotypes in the absence of specific inhibitory KIR ligands.

Jennes W, Verheyden S, Demanet C, Menten J, Vuylsteke B, Nkengasong JN, Kestens L.

PLoS One. 2011 Feb 14;6(2):e17043. doi: 10.1371/journal.pone.0017043.


Strengthening public health surveillance and response using the health systems strengthening agenda in developing countries.

Nsubuga P, Nwanyanwu O, Nkengasong JN, Mukanga D, Trostle M.

BMC Public Health. 2010 Dec 3;10 Suppl 1:S5. doi: 10.1186/1471-2458-10-S1-S5.


Scaling up HIV rapid testing in developing countries: comprehensive approach for implementing quality assurance.

Parekh BS, Kalou MB, Alemnji G, Ou CY, Gershy-Damet GM, Nkengasong JN.

Am J Clin Pathol. 2010 Oct;134(4):573-84. doi: 10.1309/AJCPTDIMFR00IKYX.


Field experience in implementing ISO 15189 in Kisumu, Kenya.

Zeh CE, Inzaule SC, Magero VO, Thomas TK, Laserson KF, Hart CE, Nkengasong JN; KEMRI/CDC HIV Research Laboratory.

Am J Clin Pathol. 2010 Sep;134(3):410-8. doi: 10.1309/AJCPZIRKDUS5LK2D.


Improving quality management systems of laboratories in developing countries: an innovative training approach to accelerate laboratory accreditation.

Yao K, McKinney B, Murphy A, Rotz P, Wafula W, Sendagire H, Okui S, Nkengasong JN.

Am J Clin Pathol. 2010 Sep;134(3):401-9. doi: 10.1309/AJCPNBBL53FWUIQJ.


The World Health Organization African region laboratory accreditation process: improving the quality of laboratory systems in the African region.

Gershy-Damet GM, Rotz P, Cross D, Belabbes el H, Cham F, Ndihokubwayo JB, Fine G, Zeh C, Njukeng PA, Mboup S, Sesse DE, Messele T, Birx DL, Nkengasong JN.

Am J Clin Pathol. 2010 Sep;134(3):393-400. doi: 10.1309/AJCPTUUC2V1WJQBM.


Country leadership and policy are critical factors for implementing laboratory accreditation in developing countries: a study on Uganda.

Opio A, Wafula W, Amone J, Kajumbula H, Nkengasong JN.

Am J Clin Pathol. 2010 Sep;134(3):381-7. doi: 10.1309/AJCP6KMOTCLISGJ3.


Laboratory systems and services are critical in global health: time to end the neglect?

Nkengasong JN, Nsubuga P, Nwanyanwu O, Gershy-Damet GM, Roscigno G, Bulterys M, Schoub B, DeCock KM, Birx D.

Am J Clin Pathol. 2010 Sep;134(3):368-73. doi: 10.1309/AJCPMPSINQ9BRMU6.


A shifting paradigm in strengthening laboratory health systems for global health: acting now, acting collectively, but acting differently.

Nkengasong JN.

Am J Clin Pathol. 2010 Sep;134(3):359-60. doi: 10.1309/AJCPY5ASUEJYQ5RK. No abstract available.


Development and application of a broadly sensitive dried-blood-spot-based genotyping assay for global surveillance of HIV-1 drug resistance.

Yang C, McNulty A, Diallo K, Zhang J, Titanji B, Kassim S, Wadonda-Kabondo N, Aberle-Grasse J, Kibuka T, Ndumbe PM, Vedapuri S, Zhou Z, Chilima B, Nkengasong JN.

J Clin Microbiol. 2010 Sep;48(9):3158-64. doi: 10.1128/JCM.00564-10. Epub 2010 Jul 21.


Surveillance of transmitted HIV type 1 drug resistance in newly diagnosed hiv type 1-infected patients in Shandong Province, China.

Zhang J, Kang D, Fu J, Sun X, Lin B, Bi Z, Nkengasong JN, Yang C.

AIDS Res Hum Retroviruses. 2010 Jan;26(1):99-103. doi: 10.1089/aid.2009.0184.


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