Olivia Keiser

Principal Investigator, Epidemiologist

Olivia_KeiserOlivia studied biology at the University of Basel, where she focused on epidemiology. She then moved to Lausanne and worked at the data centre of the Swiss HIV Cohort Study for several years. At the same time, she completed a Masters in Statistics at the University of Neuchâtel. In 2006, she joined the Institute of Social & Preventive Medicine (ISPM) at University of Bern where, in 2009, she completed her PhD on outcomes of antiretroviral therapy in the ART-LINC and IeDEA Southern Africa collaborative networks. She gained first-hand experience on the scale-up of ART in Malawi and South Africa. After the PhD she continued to work on HIV- and Hepatitis C projects in high- and low-income countries. Olivia was awarded her Habilitation in 2014. She is now senior researcher and leader of the HIV/Hepatitis group at ISPM, which focuses on prevention of mother0-to-child transmission and developing mathematical simulation models to analyze treatment outcomes and cost-effectiveness of various monitoring and treatment strategies for various diseases. A passionate hiker and skier, Olivia spends most of her weekends in the mountains.

Andreas Haas


AH_smallAndreas has a strong interest in theoretical, methodological and substantive issues of HIV research with a particular focus on prevention of mother-to-child transmission of HIV in Malawi. After completing a Master’s degree in Sociology at Goldsmiths, University of London he joined the Institute of Social and Preventive Medicine in 2012, where he is currently pursuing a PhD in Epidemiology. Andreas enjoys working across disciplinary and methodological boundaries.

Malango Theodore Msukwa

Data Manager/ Statistician

Malango is a Data Manager for the Umoyo+ project in Lilongwe, Malawi. He supervises data digitalization and entry and data cleaning, including verification, validation and analysis. He graduated from the University of Malawi with a BSc in Computer Science and Statistics (minor) in 2009. After graduation, he worked with the Malawi National Examinations Board as a Systems Analyst/Programmer for two years. He joined the Malawi Liverpool Wellcome (MLW) Trust Clinical Research Programme as a Database Manager in December 2011. There, his responsibilities included developing databases and applications for data processing, data management and analysis. He also acted as head of the Data and Statistics department for six months. He would like to build a career in statistics.

Nozga Phiri

2015-07-08 08.11.17

Nozga Phiri is a social scientist for the Umoy0+ project in Malawi. She is mainly working on the qualitative studies of the project and has also been supporting the digitalization team in data collection. Her previous work experience is in social studies, working with International Lipid‐Based Nutrient Supplements (iLiNS) Project on clinical trials that focused on testing the potential of Lipid based Nutrient Supplements (LNS) to prevent under‐nutrition in children from 6-18 months, and two other trials that evaluated the effect of LNS in pregnant and lactating women. She has also worked with Malawi Liverpool Wellcome trust on a trial that studied HIV and other STIs in the fishing communities of Mangochi. She has a Bachelor’s degree in Demography and is currently working towards a Master’s degree in Public Health at the University of Malawi, College of Medicine.

    Adrian Spörri-Fahrni


    AdrianAdrian was trained in epidemiology and biostatistics at the Institute of Social and Preventive Medicine, University of Bern. He has been working with the nationwide Swiss National Cohort SNC for many years. Using state-of-the-art linkage methodology he has developed, together with the SNC teams in Bern and Zurich, the SNC into a major Swiss research platform with funding from the Swiss National Science Foundation (2006 to 2016). He has knowledge of advanced linkage methodology and infrastructure (linkage server, linkage software), and teaches (internally and externally) on data linkage and use of statistical software. Adrian is in charge of the data management and the record linkage of the Umoyo+ project and will support the statistical analyses of the data. He is Swiss, but currently based in Singapore.

    Kali Tal

    Researcher, scientific editor, web designer

    Kali works across the disciplines of sociology, anthropology, historiography and semiotics. Throughout her career she has focused on the experiences and narratives of traumatized populations, including combat veterans, sexual abuse survivors, genocide survivors, and, most recently, on the experiences of HIV-positive women.  She supervises the Umoyo+ qualitative study, and is based in Bern, Switzerland.  She is a U.S. citizen and received her PhD in American Studies from Yale University (1990).  Kali is the author of Worlds of Hurt: Reading the Literatures of Trauma (Cambridge U Press, 1995), a seminal work in the field of trauma studies.  In her spare time, Kali enjoys painting and photography, traveling and hiking.

    Lyson Tenthani


    Lyson-smallLyson is a public health practitioner and for the past 10 years has worked in HIV and AIDS monitoring and evaluation. He began his career in the water and sanitation sector, and then moved into reproductive health, including HIV and AIDS. Lyson has worked in the resource-limited countries of Malawi and Mozambique, at the community level, district and national level. Lyson currently coordinates all the national activities of the Umoyo+ project in Malawi, where he is based. He is pursuing his PhD at the Institute of Social and Preventive Medicine of the University of Bern. He has authored several peer-reviewed journal articles on HIV and AIDS, making use of routine program data. Lyson enjoys watching soccer and doing community work.

    Our Data Entry Team