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Use of viral load to improve survey estimates of known HIV-positive status and antiretroviral treatment coverage.

Young PW, Zielinski-Gutierrez E, Wamicwe J, Mukui I, Kim AA, Waruru A, Zeh C, Kretzschmar ME, De Cock KM.

AIDS. 2019 Dec 2. doi: 10.1097/QAD.0000000000002453. [Epub ahead of print]


Field evaluation of near point of care Cepheid GeneXpert HIV-1 Qual for early infant diagnosis.

Opollo VS, Nikuze A, Ben-Farhat J, Anyango E, Humwa F, Oyaro B, Wanjala S, Omwoyo W, Majiwa M, Akelo V, Zeh C, Maman D.

PLoS One. 2018 Dec 27;13(12):e0209778. doi: 10.1371/journal.pone.0209778. eCollection 2018.


Adverse fetal and infant outcomes among HIV-infected women who received either nonnucleoside reverse transcriptase inhibitor-based or protease inhibitor-based antiretroviral therapy for prevention of mother-to-child transmission.

Masaba R, Borkowf CB, Girde S, Zeh C, Ndivo R, Nyang'au I, Achola K, Thomas TK, Lecher SL.

AIDS. 2018 Jul 31;32(12):1625-1632. doi: 10.1097/QAD.0000000000001816.


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.


CD4 Lymphocyte Enumeration and Hemoglobin Assessment Aid for Priority Decisions: A Multisite Evaluation of the BD FACSPresto System.

Thakar M, Angira F, Pattanapanyasat K, Wu AHB, O'Gorman M, Zeng H, Qu C, Mahajan B, Sukapirom K, Chen D, Hao Y, Gong Y, Indig MA, Graminske S, Orta D, d'Empaire N, Lu B, Omana-Zapata I, Zeh C.

Open AIDS J. 2017 Oct 24;11:76-90. doi: 10.2174/1874613601711010076. eCollection 2017.


When prevention of mother-to-child HIV transmission fails: preventing pretreatment drug resistance in African children.

Inzaule SC, Hamers RL, Calis J, Boerma R, Sigaloff K, Zeh C, Mugyenyi P, Akanmu S, Rinke de Wit TF.

AIDS. 2018 Jan 14;32(2):143-147. doi: 10.1097/QAD.0000000000001696. No abstract available.


Scaling up HIV viral load - lessons from the large-scale implementation of HIV early infant diagnosis and CD4 testing.

Peter T, Zeh C, Katz Z, Elbireer A, Alemayehu B, Vojnov L, Costa A, Doi N, Jani I.

J Int AIDS Soc. 2017 Nov;20 Suppl 7. doi: 10.1002/jia2.25008.


Quality assurance for point-of-care testing: Ethiopia's experience.

Kebede A, Kebede Y, Desale A, Mulugeta A, Yaregal Z, Gebreegziabxier A, Tedla Y, Zeh C, Ayana G.

Afr J Lab Med. 2016 Oct 17;5(2):452. doi: 10.4102/ajlm.v5i2.452. eCollection 2016. No abstract available.


Evaluation of the performance of Abbott m2000 and Roche COBAS Ampliprep/COBAS Taqman assays for HIV-1 viral load determination using dried blood spots and dried plasma spots in Kenya.

Zeh C, Ndiege K, Inzaule S, Achieng R, Williamson J, Chih-Wei Chang J, Ellenberger D, Nkengasong J.

PLoS One. 2017 Jun 16;12(6):e0179316. doi: 10.1371/journal.pone.0179316. eCollection 2017.


Prevalence, incidence and correlates of HSV-2 infection in an HIV incidence adolescent and adult cohort study in western Kenya.

Akinyi B, Odhiambo C, Otieno F, Inzaule S, Oswago S, Kerubo E, Ndivo R, Zeh C.

PLoS One. 2017 Jun 6;12(6):e0178907. doi: 10.1371/journal.pone.0178907. eCollection 2017.


Effect of point-of-care CD4 cell count results on linkage to care and antiretroviral initiation during a home-based HIV testing campaign: a non-blinded, cluster-randomised trial.

Desai MA, Okal DO, Rose CE, Ndivo R, Oyaro B, Otieno FO, Williams T, Chen RT, Zeh C, Samandari T.

Lancet HIV. 2017 Sep;4(9):e393-e401. doi: 10.1016/S2352-3018(17)30091-7. Epub 2017 May 31.


Low levels of viral suppression among refugees and host nationals accessing antiretroviral therapy in a Kenyan refugee camp.

Mendelsohn JB, Spiegel P, Grant A, Doraiswamy S, Schilperoord M, Larke N, Burton JW, Okonji JA, Zeh C, Muhindo B, Mohammed IM, Mukui IN, Patterson N, Sondorp E, Ross DA.

Confl Health. 2017 May 31;11:11. doi: 10.1186/s13031-017-0111-3. eCollection 2017.


Laboratory-based performance evaluation of PIMA CD4+ T-lymphocyte count point-of-care by lay-counselors in Kenya.

Zeh C, Rose CE, Inzaule S, Desai MA, Otieno F, Humwa F, Akoth B, Omolo P, Chen RT, Kebede Y, Samandari T.

J Immunol Methods. 2017 Sep;448:44-50. doi: 10.1016/j.jim.2017.05.006. Epub 2017 May 18.


Establishment of reference intervals during normal pregnancy through six months postpartum in western Kenya.

Odhiambo C, Omolo P, Oyaro B, Williamson J, Kinuthia J, Matemo D, Drake A, John-Stewart G, Zeh C.

PLoS One. 2017 Apr 11;12(4):e0175546. doi: 10.1371/journal.pone.0175546. eCollection 2017.


Emergence of untreatable, multidrug-resistant HIV-1 in patients failing second-line therapy in Kenya.

Inzaule SC, Hamers RL, Mukui I, Were K, Owiti P, Kwaro D, Rinke de Wit TF, Zeh C.

AIDS. 2017 Jun 19;31(10):1495-1498. doi: 10.1097/QAD.0000000000001500.


Performance of the SAMBA I and II HIV-1 Semi-Q Tests for viral load monitoring at the point-of-care.

Goel N, Ritchie AV, Mtapuri-Zinyowera S, Zeh C, Stepchenkova T, Lehga J, De Ruiter A, Farleigh LE, Edemaga D, So R, Sembongi H, Wisniewski C, Nadala L, Schito M, Lee H.

J Virol Methods. 2017 Jun;244:39-45. doi: 10.1016/j.jviromet.2017.03.001. Epub 2017 Mar 6.


Correlation of Adherence by Pill Count, Self-report, MEMS and Plasma Drug Levels to Treatment Response Among Women Receiving ARV Therapy for PMTCT in Kenya.

Mudhune V, Gvetadze R, Girde S, Ndivo R, Angira F, Zeh C, Thomas T, Lecher SL.

AIDS Behav. 2018 Mar;22(3):918-928. doi: 10.1007/s10461-017-1724-7.


Surveillance of HIV-1 pol transmitted drug resistance in acutely and recently infected antiretroviral drug-naïve persons in rural western Kenya.

Onywera H, Maman D, Inzaule S, Auma E, Were K, Fredrick H, Owiti P, Opollo V, Etard JF, Mukui I, Kim AA, Zeh C.

PLoS One. 2017 Feb 8;12(2):e0171124. doi: 10.1371/journal.pone.0171124. eCollection 2017.


Field Evaluation of Dried Blood Spots for HIV-1 Viral Load Monitoring in Adults and Children Receiving Antiretroviral Treatment in Kenya: Implications for Scale-up in Resource-Limited Settings.

Schmitz ME, Agolory S, Junghae M, Broyles LN, Kimeu M, Ombayo J, Umuro M, Mukui I, Alwenya K, Baraza M, Ndiege K, Mwalili S, Rivadeneira E, Ngʼangʼa L, Yang C, Zeh C; for VL-DBS Study Group.

J Acquir Immune Defic Syndr. 2017 Apr 1;74(4):399-406. doi: 10.1097/QAI.0000000000001275.


Performance of Celera RUO integrase resistance assay across multiple HIV-1 subtypes.

Wallis CL, Viana RV, Saravanan S, Silva de Jesus C, Zeh C, Halvas EK, Mellors JW.

J Virol Methods. 2017 Mar;241:41-45. doi: 10.1016/j.jviromet.2016.12.008. Epub 2016 Dec 16.


Viral and Host Characteristics of Recent and Established HIV-1 Infections in Kisumu based on a Multiassay Approach.

Otecko N, Inzaule S, Odhiambo C, Otieno G, Opollo V, Morwabe A, Were K, Ndiege K, Otieno F, Kim AA, Zeh C.

Sci Rep. 2016 Nov 29;6:37964. doi: 10.1038/srep37964.


Menstrual cups and sanitary pads to reduce school attrition, and sexually transmitted and reproductive tract infections: a cluster randomised controlled feasibility study in rural Western Kenya.

Phillips-Howard PA, Nyothach E, Ter Kuile FO, Omoto J, Wang D, Zeh C, Onyango C, Mason L, Alexander KT, Odhiambo FO, Eleveld A, Mohammed A, van Eijk AM, Edwards RT, Vulule J, Faragher B, Laserson KF.

BMJ Open. 2016 Nov 23;6(11):e013229. doi: 10.1136/bmjopen-2016-013229.


Estimating HIV Incidence Using a Cross-Sectional Survey: Comparison of Three Approaches in a Hyperendemic Setting, Ndhiwa Subcounty, Kenya, 2012.

Blaizot S, Kim AA, Zeh C, Riche B, Maman D, De Cock KM, Etard JF, Ecochard R.

AIDS Res Hum Retroviruses. 2017 May;33(5):472-481. doi: 10.1089/AID.2016.0123. Epub 2016 Dec 13.


Clinical Evaluation of the BD FACSPresto™ Near-Patient CD4 Counter in Kenya.

Angira F, Akoth B, Omolo P, Opollo V, Bornheimer S, Judge K, Tilahun H, Lu B, Omana-Zapata I, Zeh C.

PLoS One. 2016 Aug 2;11(8):e0157939. doi: 10.1371/journal.pone.0157939. eCollection 2016.


Characteristics of women screened for a contraceptive intravaginal ring study in Kisumu, Kenya, 2014.

McLellan-Lemal E, Gust DA, Gvetadze R, Furtado M, Otieno FO, Desai M, Zeh C, Samandari T, Nyagol B, Makanga EM.

Res J Womens Health. 2016;3. pii: 1. Epub 2016 Jul 6.


Prevalence and dynamics of the K65R drug resistance mutation in HIV-1-infected infants exposed to maternal therapy with lamivudine, zidovudine and either nevirapine or nelfinavir in breast milk.

Inzaule SC, Weidle PJ, Yang C, Ndiege K, Hamers RL, Rinke de Wit TF, Thomas T, Zeh C.

J Antimicrob Chemother. 2016 Jun;71(6):1619-26. doi: 10.1093/jac/dkw039. Epub 2016 Mar 6.


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.


Prevalence of reproductive tract infections and the predictive value of girls' symptom-based reporting: findings from a cross-sectional survey in rural western Kenya.

Kerubo E, Laserson KF, Otecko N, Odhiambo C, Mason L, Nyothach E, Oruko KO, Bauman A, Vulule J, Zeh C, Phillips-Howard PA.

Sex Transm Infect. 2016 Jun;92(4):251-6. doi: 10.1136/sextrans-2015-052371. Epub 2016 Jan 27.


Anaemia in HIV-infected pregnant women receiving triple antiretroviral combination therapy for prevention of mother-to-child transmission: a secondary analysis of the Kisumu breastfeeding study (KiBS).

Odhiambo C, Zeh C, Angira F, Opollo V, Akinyi B, Masaba R, Williamson JM, Otieno J, Mills LA, Lecher SL, Thomas TK.

Trop Med Int Health. 2016 Mar;21(3):373-84. doi: 10.1111/tmi.12662. Epub 2016 Jan 22.


HIV-1 Drug Resistance Mutations: Potential Applications for Point-of-Care Genotypic Resistance Testing.

Rhee SY, Jordan MR, Raizes E, Chua A, Parkin N, Kantor R, Van Zyl GU, Mukui I, Hosseinipour MC, Frenkel LM, Ndembi N, Hamers RL, Rinke de Wit TF, Wallis CL, Gupta RK, Fokam J, Zeh C, Schapiro JM, Carmona S, Katzenstein D, Tang M, Aghokeng AF, De Oliveira T, Wensing AM, Gallant JE, Wainberg MA, Richman DD, Fitzgibbon JE, Schito M, Bertagnolio S, Yang C, Shafer RW.

PLoS One. 2015 Dec 30;10(12):e0145772. doi: 10.1371/journal.pone.0145772. eCollection 2015.


Anemia and Red Blood Cell Abnormalities in HIV-Infected and HIV-Exposed Breastfed Infants: A Secondary Analysis of the Kisumu Breastfeeding Study.

Odhiambo C, Zeh C, Ondoa P, Omolo P, Akoth B, Lwamba H, Lando R, Williamson J, Otieno J, Masaba R, Weidle P, Thomas T; KiBS Study Team.

PLoS One. 2015 Nov 3;10(11):e0141599. doi: 10.1371/journal.pone.0141599. eCollection 2015.


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.


HIV acquisition during pregnancy and postpartum is associated with genital infections and partnership characteristics.

Kinuthia J, Drake AL, Matemo D, Richardson BA, Zeh C, Osborn L, Overbaugh J, McClelland RS, John-Stewart G.

AIDS. 2015 Sep 24;29(15):2025-33. doi: 10.1097/QAD.0000000000000793.


Stringent HIV Viral Load Threshold for Virological Failure Using Dried Blood Spots: Is the Perfect the Enemy of the Good?

Inzaule SC, Hamers RL, Zeh CE, Rinke de Wit TF.

J Acquir Immune Defic Syndr. 2016 Jan 1;71(1):e30-3. doi: 10.1097/QAI.0000000000000828. No abstract available.


Menstrual Needs and Associations with Sexual and Reproductive Risks in Rural Kenyan Females: A Cross-Sectional Behavioral Survey Linked with HIV Prevalence.

Phillips-Howard PA, Otieno G, Burmen B, Otieno F, Odongo F, Odour C, Nyothach E, Amek N, Zielinski-Gutierrez E, Odhiambo F, Zeh C, Kwaro D, Mills LA, Laserson KF.

J Womens Health (Larchmt). 2015 Oct;24(10):801-11. doi: 10.1089/jwh.2014.5031. Epub 2015 Aug 21.


Cascade of HIV care and population viral suppression in a high-burden region of Kenya.

Maman D, Zeh C, Mukui I, Kirubi B, Masson S, Opolo V, Szumilin E, Riche B, Etard JF.

AIDS. 2015 Jul 31;29(12):1557-65. doi: 10.1097/QAD.0000000000000741.


Evaluating HIV Prevention Programs: Herpes Simplex Virus Type 2 Antibodies as Biomarker for Sexual Risk Behavior in Young Adults in Resource-Poor Countries.

Behling J, Chan AK, Zeh C, Nekesa C, Heinzerling L.

PLoS One. 2015 May 26;10(5):e0128370. doi: 10.1371/journal.pone.0128370. eCollection 2015.


Evaluation of locally established reference intervals for hematology and biochemistry parameters in Western Kenya.

Odhiambo C, Oyaro B, Odipo R, Otieno F, Alemnji G, Williamson J, Zeh C.

PLoS One. 2015 Apr 13;10(4):e0123140. doi: 10.1371/journal.pone.0123140. eCollection 2015.


Leukodepletion as a point-of-care method for monitoring HIV-1 viral load in whole blood.

Titchmarsh L, Zeh C, Verpoort T, Allain JP, Lee H.

J Clin Microbiol. 2015 Apr;53(4):1080-6. doi: 10.1128/JCM.02853-14. Epub 2014 Nov 26.


Using standard and institutional mentorship models to implement SLMTA in Kenya.

Makokha EP, Mwalili S, Basiye FL, Zeh C, Emonyi WI, Langat R, Luman ET, Mwangi J.

Afr J Lab Med. 2014 Nov 3;3(2):220. doi: 10.4102/ajlm.v3i2.220. eCollection 2014.


[Pathologic-anatomic and morphometric examinations on the heart in feral cockatoos].

Pees M, Zeh C, Filippich LJ, Krautwald-Junghanns ME.

Tierarztl Prax Ausg K Kleintiere Heimtiere. 2014;42(6):390-6. doi: 10.15654/TPK-131101. Epub 2014 Oct 6. German.


Outcomes in a cohort of women who discontinued maternal triple-antiretroviral regimens initially used to prevent mother-to-child transmission during pregnancy and breastfeeding--Kenya, 2003-2009.

Minniear TD, Girde S, Angira F, Mills LA, Zeh C, Peters PJ, Masaba R, Lando R, Thomas TK, Taylor AW; Kisumu Breastfeeding Study Team.

PLoS One. 2014 Apr 14;9(4):e93556. doi: 10.1371/journal.pone.0093556. eCollection 2014.


Field evaluation of Abbott Real Time HIV-1 Qualitative test for early infant diagnosis using dried blood spots samples in comparison to Roche COBAS Ampliprep/COBAS TaqMan HIV-1 Qual test in Kenya.

Chang J, Omuomo K, Anyango E, Kingwara L, Basiye F, Morwabe A, Shanmugam V, Nguyen S, Sabatier J, Zeh C, Ellenberger D.

J Virol Methods. 2014 Aug;204:25-30. doi: 10.1016/j.jviromet.2014.03.010. Epub 2014 Apr 13.


Normal laboratory reference intervals among healthy adults screened for a HIV pre-exposure prophylaxis clinical trial in Botswana.

Segolodi TM, Henderson FL, Rose CE, Turner KT, Zeh C, Fonjungo PN, Niska R, Hart C, Paxton LA.

PLoS One. 2014 Apr 8;9(4):e93034. doi: 10.1371/journal.pone.0093034. eCollection 2014.


Incidence and predictors of first line antiretroviral regimen modification in western Kenya.

Inzaule S, Otieno J, Kalyango J, Nafisa L, Kabugo C, Nalusiba J, Kwaro D, Zeh C, Karamagi C.

PLoS One. 2014 Apr 2;9(4):e93106. doi: 10.1371/journal.pone.0093106. eCollection 2014.


Strengthening national health laboratories in sub-Saharan Africa: a decade of remarkable progress.

Alemnji GA, Zeh C, Yao K, Fonjungo PN.

Trop Med Int Health. 2014 Apr;19(4):450-8. doi: 10.1111/tmi.12269. Epub 2014 Feb 10. Review.


Investigation of HIV Incidence Rates in a High-Risk, High-Prevalence Kenyan Population: Potential Lessons for Intervention Trials and Programmatic Strategies.

Mdodo R, Gust D, Otieno FO, McLellan-Lemal E, Chen RT, LeBaron C, Hardnett F, Turner K, Ndivo R, Zeh C, Samandari T, Mills LA.

J Int Assoc Provid AIDS Care. 2016 Jan-Feb;15(1):42-50. doi: 10.1177/2325957413511667. Epub 2013 Dec 5.


Neutropenia in HIV-Infected Kenyan Women Receiving Triple Antiretroviral Prophylaxis to Prevent Mother-to-Child HIV Transmission Is Not Associated with Serious Clinical Sequelae.

Iuliano AD, Weidle PJ, Brooks JT, Masaba R, Girde S, Ndivo R, Ogindo P, Omolo P, Zeh C, Thomas TK.

J Int Assoc Provid AIDS Care. 2015 May-Jun;14(3):261-8. doi: 10.1177/2325957413502543. Epub 2013 Sep 30.


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.


Prevalence of HIV and other sexually transmitted infections among female sex workers in Kisumu, Western Kenya, 1997 and 2008.

Vandenhoudt HM, Langat L, Menten J, Odongo F, Oswago S, Luttah G, Zeh C, Crucitti T, Laserson K, Vulule J, Buve A.

PLoS One. 2013;8(1):e54953. doi: 10.1371/journal.pone.0054953. Epub 2013 Jan 23.

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