Prevention of mother-to-child transmission

Haas AD, Msukwa MT, Egger M, Tenthani L, Tweya H, Jahn A, Gadabu OJ, Tal K, Salazar-Vizcaya L, Estill J, Spoerri A, Phiri N, Chimbwandira F, van Oosterhout JJ, Keiser O. Adherence to Antiretroviral Therapy During and After Pregnancy: Cohort Study on Women Receiving Care in Malawi’s “Option B+” programme. Clin. Infect. Dis. In press.

Haas AD, Tenthani L, Msukwa MT, Tal K, Jahn A, Gadabu OJ, Spoerri A, Chimbwandira F, van Oosterhout JJ, Keiser O. Retention in care during the first 3 years of antiretroviral therapy for women in Malawi’s option B+ programme: an observational cohort study. Lancet HIV. 2016 3(4):e175-e182.

Tweya H, Keiser O, Haas AD, Tenthani L, Phiri S, Egger M, Estill J. Comparative cost-effectiveness of Option B+ for prevention of mother to child transmission of HIV in Malawi: Mathematical modelling study. AIDS. 2016 30(6):953.62.

Tenthani L, Haas AD, Egger M, van Oosterhout JJ, Jahn A, Chimbwandira F, Tal K, Myer L, Estill J, Keiser O. HIV testing among pregnant women who attend antenatal care in Malawi. J Acquir Immune Defic Syndr. 2015 69(5):610-4.

Tenthani L*, Haas AD*, Tweya H, Jahn A, van Oosterhout JJ, Chimbwandira F, Chirwa Z, Ng’ambi W, Bakali A, Phiri S, Myer L, Valeri F, Zwahlen M, Wandeler G, Keiser O*; Ministry of Health in Malawi and IeDEA Southern Africa. Retention in care under universal antiretroviral therapy for HIV-infected pregnant and breastfeeding women (‘Option B+’) in Malawi. AIDS. 2014 28(4):589-98. Award: The most highly cited article in 2015 in the category of Epidemiology & Social, AIDS.

Tweya H, Gugsa S, Hosseinipour M, Speight C, Ng’ambi W, Bokosi M, Chikonda J, Chauma A, Khomani P, Phoso M, Mtande T, Phiri S. Understanding factors, outcomes and reasons for loss to follow-up among women in Option B+ PMTCT programme in Lilongwe, Malawi. Trop Med Int Health. 2014 19(11):1360-6

Other topics

Estill J, Tweya H, Egger M, Wandeler G, Feldacker C, Johnson LF, Blaser N, Vizcaya LS, Phiri S, Keiser O. Tracing of patients lost to follow-up and HIV transmission: mathematical modeling study based on 2 large ART programs in Malawi. J Acquir Immune Defic Syndr. 2014 65(5):e179-86.

Tweya H, Feldacker C, Estill J, Jahn A, Ng’ambi W, Ben-Smith A, Keiser O, Bokosi M, Egger M, Speight C, Gumulira J, Phiri S. Are they really lost? “true” status and reasons for treatment discontinuation among HIV infected patients on antiretroviral therapy considered lost to follow up in Urban Malawi. PLoS One. 2013 8(9):e75761.

Estill J, Egger M, Johnson LF, Gsponer T, Wandeler G, Davies MA, Boulle A, Wood R, Garone D, Stringer JS, Hallett TB, Keiser O; IeDEA Southern Africa Collaboration. Monitoring of antiretroviral therapy and mortality in HIV programmes in Malawi, South Africa and Zambia: mathematical modelling study. PLoS One. 2013;8(2):e57611.

Tweya H, Feldacker C, Phiri S, Ben-Smith A, Fenner L, Jahn A, Kalulu M, Weigel R, Kamba C, Banda R, Egger M, Keiser O. Comparison of treatment outcomes of new smear-positive pulmonary tuberculosis patients by HIV and antiretroviral status in a TB/HIV clinic, Malawi. PLoS One. 2013;8(2):e56248.

Weigel R*, Estill J*, Egger M, Harries AD, Makombe S, Tweya H, Jahn A, Keiser O. Mortality and loss to follow-up in the first year of ART: Malawi national ART programme. AIDS. 2012 26(3):365-73.

Weigel R, Phiri S, Chiputula F, Gumulira J, Brinkhof M, Gsponer T, Tweya H, Egger M, Keiser O. Growth response to antiretroviral treatment in HIV-infected children: a cohort study from Lilongwe, Malawi. Trop Med Int Health. 2010 15(8):934-44.

Conference presentations

Haas AD, Msukwa MT, Egger M, Tenthani L, Tweya H, Jahn A, Gadabu OJ, Tal K, Salazar-Vizcaya L, Estill J, Spoerri A, Phiri N, Chimbwandira F, van Oosterhout JJ, Keiser O. Adherence to Antiretroviral Therapy During and After Pregnancy: Cohort Study on Women Receiving Care in Malawi’s “Option B+” programme. 18-22.7.2016, Durban, South Africa. Poster presentation.

Mugglin C, Haas A, van Oosterhout J, Chimbwandira F, Tenthani L, Msukwa M, Gadabu O, Estill J, Egger M, Keiser O. Trends in ART Discontinuation by Age in Malawi, 2004 – 2014. Conference on Retroviruses and Opportunistic Infections (CROI), 22.-25.2.2016, Boston, US. Oral presentation.

Haas AD, Tenthani L, Msukwa M, Jahn A, Midiani D Mhango E, Gadabu O, Tal K, Spörri A Egger M, Chimbwandira F, van Oosterhout J, Keiser O. Post prevention of mother-to-child-transmission: 30-months outcomes in the Malawian “Option B+ programme”. IAS Conference on HIV Pathogenesis, Treatment and Prevention, 19.-22.7.2015, Vancouver, Canada. Oral presentation.

Estill J, Ford N, Haas AD, Tenthani L, Egger M, Salazar-Vizcaya L, Blaser N, Keiser O. Projecting future second-line needs in Malawi. International Workshop on HIV Observational Databases (IWHOD) 26.-28.3.2015, Catania, Italy. Poster presentation.

Estill J, Blaser N, Salazar Vizcaya L, Tweya H, Phiri S, Tenthani L, Egger M, Keiser O. The impact of viral load monitoring and tracing of patients lost to follow-up on HIV epidemic in Malawi: Mathematical model. International AIDS Conference, 20-25.7. 2014, Melbourne, Australia. Poster presentation.

Estill J, Salazar-Vizcaya L, Blaser N, Tweya H, Egger M, Keiser O. The impact of viral load monitoring and tracing patients lost to follow-up on the HIV epidemic. International Workshop on HIV Observational Databases, 27-29.3. 2014, Sitges, Spain. Oral presentation.

Estill J, Keiser O. The long-term impact of viral load monitoring and tracing patients lost to follow-up on the HIV epidemic. Swiss Meeting for Infectious Disease Dynamics (SMIDDY), September 13.9.2013, Basel, Switzerland.

Tenthani, L & Haas, AD ,Tweya H, Jahn, A, van Oosterhout, J, Chimbwandira, F, Chirwa, Z, Ng’ambi, W, Bakali, A, Phiri, S, Myer, L, Zwahlen, M, Wandeler, G, Keiser, O. Roll-out of Universal Antiretroviral Therapy for HIV Infected Pregnant and Breastfeeding Women (“Option B+”) in Malawi: Factors Influencing Retention in Care. IAS Conference on HIV Pathogenesis, Treatment and Prevention, 30.6.-3.7.2013. Kuala Lumpur, Malaysia. Oral presentation.

Haas AD, Tenthani L, Tweya H, Jahn A, van Oosterhout J, Chimbwandira F, Chirwa Z, Ng’ambi W, Bakali A, Phiri S, Myer L, Zwahlen M, Wandeler G, Keiser O. Evaluation the “Option B+” strategy for preventing the mother-to-child transmission of HIV and preserving maternal health: results from the Malawi national programme. International Workshop on HIV Observational Databases IWHOD, Cavtat, Croatia, 11.-13.4.2013. Poster presentation.

Weigel R, Keiser O, Gumulira J, Chiputula F, Brinkhof M, Tweya H, Egger M, Phiri S. Growth response to ART in HIV-infected children from Lilongwe, Malawi. Conference on Retroviruses and Opportunistic Infections (CROI) 16.-19.2.2010, San Francisco, USA. Poster.

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