Olivia Keiser

15.1k citations

201 papers · 7.2k · 2 hit papers · h-index 43

Impact in

Infectious Diseases top 0.2%
- HIV/AIDS Research and Interventions
- HIV/AIDS drug development and treatment
Virology top 0.5%
- HIV Research and Treatment

Papers in

Infectious Diseases 105
- HIV/AIDS Research and Interventions 59
- HIV/AIDS drug development and treatment 18
- Viral Infections and Outbreaks Research 15
- COVID-19 Clinical Research Studies 7
Epidemiology 25
- Hepatitis B Virus Studies 8

Co-authors: Matthias Egger (67 shared papers)Janne Estill (61 shared papers)Andrew Boulle (29 shared papers)Robin Wood (26 shared papers)Gilles Wandeler (21 shared papers)Mary‐Ann Davies (32 shared papers)Sam Phiri (15 shared papers)Martin Rickenbach (6 shared papers)
Journals: PLoS ONE (20 papers)AIDS (18 papers)Tropical Medicine & International Health (12 papers)JAIDS Journal of Acquired Immune Deficiency Syndromes (11 papers)Epidemiology and Infection (7 papers)
Partner nations: Switzerland United States South Africa

In The Last Decade

Olivia Keiser

194 papers receiving 7.0k citations

Olivia Keiser's Hit Papers

align trajectories log scale

A multinational Delphi consensus to end the COVID-19 public health threat 2022 · 128 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2022 Nature
2005 JNCI Journal of the National Cancer Institute

Peers

Countries citing papers authored by Olivia Keiser

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Citations

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Fields of papers citing papers by Olivia Keiser

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Olivia Keiser. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Olivia Keiser. The network helps show where Olivia Keiser may publish in the future.

Co-authors

The 25 scholars most cited alongside Olivia Keiser, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Olivia Keiser Line = papers co-authored together Olivia Keiser links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 201 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Cancer Risk in the Swiss HIV Cohort Study: Associations With Immunodeficiency, Smoking, and Highly Active Antiretroviral Therapy JNCI Journal of the National Cancer Institute ·Gary M. Clifford, Jerry Polesel, Martin Rickenbach, (unknown), Luigino Dal Maso, Olivia Keiser, Andreas Kofler, Elisabetta Rapiti, Fabio Levi, Gernot Jundt, T. Fisch, Andrea Bordoni, D. de Weck, Silvia Franceschi Hit paper breakdown →	2005	664
2	Influence of CYP2B6 polymorphism on plasma and intracellular concentrations and toxicity of efavirenz and nevirapine in HIV-infected patients Pharmacogenetics and Genomics ·Margalida Rotger, Sara Colombo, Hansjakob Furrer, Gabriela Bleiber, Thierry Buclin, Belle L. Lee, Olivia Keiser, Jérôme Biollaz, Laurent A. Décosterd, Amalio Telenti	2005	339
3	Life Expectancies of South African Adults Starting Antiretroviral Treatment: Collaborative Analysis of Cohort Studies PLoS Medicine ·Leigh F. Johnson, Joël Mossong, Rob Dorrington, Michael Schomaker, Christopher J. Hoffmann, Olivia Keiser, Matthew P. Fox, Robin Wood, Hans Prozesky, Janet Giddy, Daniela Garone, Morna Cornell, Matthias Egger, Andrew Boulle	2013	318
4	Retention in care under universal antiretroviral therapy for HIV-infected pregnant and breastfeeding women (‘Option B+’) in Malawi AIDS ·Lyson Tenthani, Andreas D. Haas, Hannock Tweya, Andreas Jahn, Joep J. van Oosterhout, Frank Chimbwandira, Zengani Chirwa, Wingston Ng’ambi, Alan Bakali, Sam Phiri, Landon Myer, Fabio Valeri, Marcel Zwahlen, Gilles Wandeler, Olivia Keiser	2014	302
5	Changing patterns of cancer incidence in the early- and late-HAART periods: the Swiss HIV Cohort Study British Journal of Cancer ·(unknown), Silvia Franceschi, M. Lise, Gary M. Clifford, Martin Rickenbach, Fabio Levi, Manuela Maspoli, Christine Bouchardy, Silvia Dehler, Gernot Jundt, S.M. Ess, Andrea Bordoni, Isabelle Konzelmann, H. Frick, Luigino Dal Maso, Luigia Elzi, Hansjakob Furrer, Alexandra Calmy, Matthias Cavassini, Bruno Ledergerber, Olivia Keiser	2010	232
6	Loss to programme between HIV diagnosis and initiation of antiretroviral therapy in sub‐Saharan Africa: systematic review and meta‐analysis Tropical Medicine & International Health ·Catrina Mugglin, Janne Estill, Gilles Wandeler, Nicole Bender, Matthias Egger, Thomas Gsponer, Olivia Keiser, (unknown)	2012	208
7	Prognosis of patients with HIV-1 infection starting antiretroviral therapy in sub-Saharan Africa: a collaborative analysis of scale-up programmes The Lancet ·Margaret May, Andrew Boulle, Sam Phiri, Eugène Messou, Landon Myer, Robin Wood, Olivia Keiser, Jonathan A C Sterne, François Dabis, Matthias Egger	2010	193
8	Long-term immunologic response to antiretroviral therapy in low-income countries: a collaborative analysis of prospective studies AIDS ·Denis Nash, Monica Katyal, Martin W. G. Brinkhof, Olivia Keiser, Margaret May, Rachael A. Hughes, François Dabis, Robin Wood, Eduardo Sprinz, Mauro Schechter, Matthias Egger	2008	157
9	Active surveillance for rheumatic heart disease in endemic regions: a systematic review and meta-analysis of prevalence among children and adolescents The Lancet Global Health ·Martina Rothenbühler, Cróchán J. O’Sullivan, Stefan Stortecky, Giulio Stefanini, Ernest Spitzer, Janne Estill, Nikesh Raj Shrestha, Olivia Keiser, Peter Jüni, Thomas Pilgrim	2014	149
10	Retention in care during the first 3 years of antiretroviral therapy for women in Malawi's option B+ programme: an observational cohort study The Lancet HIV ·Andreas D. Haas, Lyson Tenthani, Malango Msukwa, Kali Tal, Andreas Jahn, Oliver Jintha Gadabu, Adrian Spoerri, Frank Chimbwandira, Joep J. van Oosterhout, Olivia Keiser	2016	147
11	Missed opportunities to prevent mother-to-child-transmission AIDS ·Celina Wettstein, Catrina Mugglin, Matthias Egger, Nello Blaser, Luisa Salazar‐Vizcaya, Janne Estill, Nicole Bender, Mary‐Ann Davies, Gilles Wandeler, Olivia Keiser	2012	146
12	Insulin resistance is associated with liver fibrosis in non-diabetic chronic hepatitis C patients Journal of Hepatology ·A Muzzi, Gioacchino Leandro, Laura Rubbia‐Brandt, Richard W. James, Olivia Keiser, R Malinverni, Jean‐François Dufour, Beat Helbling, A. Hadengue, J. J. Gonvers	2004	143
13	A multinational Delphi consensus to end the COVID-19 public health threat Nature ·Jeffrey V. Lazarus, Diana Romero, Christopher J. Kopka, Salim S. Abdool Karim, Laith J. Abu‐Raddad, Gisele Almeida, Ricardo Baptista‐Leite, Joshua A. Barocas, Maurício L. Barreto, Yaneer Bar-Yam, Quique Bassat, Carolina Batista, Morgan Bazilian, Shu‐Ti Chiou, Carlos del Rı́o, Gregory J. Dore, George F. Gao, Lawrence O. Gostin, Margaret Hellard, J. L. Jiménez, Gagandeep Kang, Nancy Y. Lee, Mojca Matičič, Martin McKee, Sabin Nsanzimana, Miquel Oliu‐Barton, Bary Pradelski, Oksana Pyzik, Kenneth Rabin, Sunil Kumar Raina, Sabina Faiz Rashid, Magdalena Rathe, Rocío Sáenz, Sudhvir Singh, Malene Trock-Hempler, Sonia Villapol, Peiling Yap, Agnès Binagwaho, Adeeba Kamarulzaman, Ayman El-Mohandes, (unknown), Salim Abdulla, Sarah Addleman, Gulnara Aghayeva, Raymond Agius, Mohammed Ahmed, Mohamed Ramy, Pedro Aíde, Soo Aleman, Jean-Patrick Alfred, Shamim Ali, J. Aliaga, Tammam Aloudat, Saleh A. Alqahtani, Jameela Alsalman, John Amuasi, Anurag Agrawal, Wagida A. Anwar, Tânia Cremonini de Araújo-Jorge, Osvaldo Artaza, Leyla Asadi, Yaw Asante Awuku, Michael G. Baker, Lorena Barberia, Ernesto Báscolo, Paul Belcher, Lizett Bell, Adele Schwartz Benzaken, Emil J. Bergholtz, Nahid Bhadelia, Anant Bhan, Stéphane Bilodeau, Ricardo Bitrán, Philomena M. Bluyssen, A Bosman, Fernando A. Bozza, Melanie M. Brinkmann, Andrew Brown, B. Mellado, Elizabeth A. Bukusi, Chris Bullen, Giorgio Buonanno, Rochelle A. Burgess, Matthew Butler, Pauline Byakika‐Kibwika, Báltica Cabieses, Gunilla Carlsson, Fidelia Cascini, Chishala Chabala, M. Chakroun, Kar Keung Cheng, Agnes Chetty, Dmytro Chumachenko, Gregg Consalves, Andrew Conway Morris, Ahmed Cordie, Tumani Corrah, Brenda Crabtree‐Ramírez, Naranjargal Dashdorj, Nadav Davidovitch, Luís Eugênio Portela Fernandes de Souza, A C Dhariwal, Elena Druică, Önder Ergönül, Ngozi Erondu, Mohammad Yasir Essar, Andrew G. Ewing, Gonzalo Fanjul, Daniel Feierstein, Eric L. Ding, Ramón Figueroa, J. Peter Figueroa, Dale Fisher, Walter Flores, David A. Forero‐Peña, Howard Frumkin, Amiran Gamkrelidze, Monica Gandhi, Patricia García, Alberto L. García‐Basteiro, Adolfo García‐Sastre, Suneela Garg, Fifonsi Adjidossi Gbeasor‐Komlanvi, Carlos Gershenson, Ishwar Gilada, Lígia Giovanella, Marino González, Manfred S. Green, Trisha Greenhalgh, Paul Griffin, Stephen Griffin, Beatriz Grinsztejn, Tanu Anand, Germán Guerra, Renzo Guinto, Mariusz Gujski, Rahmet Güner, Adam Hamdy, Marian-Gabriel Hâncean, Abusayeed Haniffa, Kenneth Hartigan‐Go, Hoda K. Hassan, Simon I Hay, Matti T. J. Heino, Zdeněk Hel, Peter J. Hotez, Jia Hu, Mirsada Hukić, Carel IJsselmuiden, Davidson Iroko, Maged Iskarous, Chimaraoke Izugbara, Choolwe Jacobs, Alejandro R. Jadad, Fyezah Jehan, Ayana Jordan, Imane Jroundi, Kevin C. Kain, Fatjona Kamberi, Karamov Ev, Abraar Karan, Rebecca Katz, Aris Katzourakis, Abigail Kazembe, Faryal Khamis, Komiljon Khamzayev, Judy Khanyola, Kamlesh Khunti, Elsie Kiguli-Malwadde, Woo Joo Kim, Bruce Kirenga, Daniel Klimovský, Brittany Kmush, Felícia Marie Knaul, Manolis Kogevinas, F. Kristensen, Dinesh Kumar, Raman Kumar, Amanda Kvalsvig, Marcus Lacerda, Arush Lal, Tom Lawton, Jay Lemery, Anthony Leonardi, Yuguo Li, Jan Löttvall, Mohamed Lounis, Daniel Maceira, C. Raina MacIntyre, Azzeddine Madani, Gkikas Magiorkinis, Reza Malekzadeh, Marc Choisy, Jasmine R Marcelin, Guy B. Marks, Linsey C. Marr, Jeanne Marrazzo, Antonieta Martina, José María Martín-Moreno, Carlos Mateos, Mayfong Mayxay, Jean Bapiste Mazarati, Souleymane Mboup, Jennifer S. McDonald, Faye McMillan, Enkeleint A. Mechili, André C. Medici, Sarah Davis, Petra Meier, Ziad A. Memish, Jaideep Menon, Purnima Menon, Jonathan Mesiano‐Crookston, Susan Michie, Ivana Mikolašević, Ognjen Milićević, Asit Kumar Mishra, Rahma Mohamed, Ali H. Mokdad, Michele Monroy-Valle, Lídia Morawska, Sterghios Moschos, Karam R. Motawea, Sayed Hamid Mousavi, Ghina R. Mumtaz, Peter Munene, Carmen Muñoz‐Almagro, Janet Muriuki, Sylvia Kiwuwa Muyingo, Denise Naniche, C. David Naylor, Nicaise Ndembi, Juraj Nemec, Igor Nesteruk, Christine Ngaruiya, Hung Q. Nguyen, Dafina Nikolova, Dorit Nitzan, Ole Frithjof Norheim, Mohammed Noushad, Francine Ntoumi, Gunhild Alvik Nyborg, Eleanor Ochodo, Zekaver Odabaşı, Mbah Patrick Okwen, Olivia Keiser, David S. Y. Ong, Ijeoma Nnodim Opara, Miguel Rodríguez Orozco, Hitoshi Oshitani, Christina Pagel, Madhukar Pai, Björg Pálsdóttir, (unknown), Dimitrios Paraskevis, Jeanna Parsons Leigh, Bernard Pécoul, Andreas Peichl, Eddy Pérez-Then, Phuc Pham Ðuc, Cécile Philippe, Andrea Pineda Rojas, Courtney Pladsen, Anton Pozniak, Rodrigo Quiroga, Huma Qureshi, Sanjay Rampal, Megan L. Ranney, Laura Rathe, Scott C. Ratzan, Henriette Raventós, Helen Rees, Renata Karina Reis, Walter Ricciardi, Nesrine Rizk, Magda Robalo, Eleanor Robertson, Leanne J. Robinson, Casper Rokx, Tamsin Ros, John-Arne Røttingen, Meir Rubin, Kiat Ruxrungtam, Shakhlo Sadirova, Senjuti Saha, Nelly Salgado, Lizet Sánchez, Thurka Sangaramoorthy, Carolina Santamaría‐Ulloa, Renata Ferreira dos Santos, Bisher Sawaf, Matthias F. Schneider, Robert T. Schooley, Alper Şener, Jaime Sepúlveda, Jaffer Shah, Mosa Shibani, Sheikh Shoib, Izukanji Sikazwe, Aistis Šimaitis, Amandeep S. Gill, Natia Skhvitaridze, Milka Sokolović, Roma Solomon, Xavier Solórzano, Sandra A. Springer, Jakub Šrol, Anthony Staines, Henry T. Stelfox, Steffanie A. Strathdee, Lokman Hakim Sulaiman, Brett Sutton, Dag Svanæs, Sarya Swed, Vana Sypsa, Kristine Sørensen, Raji Tajudeen, Amy Tan, Julian W. Tang, Marcel Tanner, Tavpritesh Sethi, Marleen Temmerman, Kyu Kyu Than, Halidou Tinto, Sênoudé Pacôme Tomètissi, Irene Torres, K. P. Tshering, Sotirios Tsiodras, Benjamin Tsofa, Anders Vahlne, Juan Rafael Vargas, Iván Darío Vélez, Deisy de Freitas Lima Ventura, Rafael Vilasanjuan, Joe Vipond, Sarah Wamala Andersson, Pawel Wargocki, Robert West, Angela C. Weyand, Trenton M. White, Guntram B. Wolff, Maosheng Yao, Christian A. Yates, Georgina Yeboah, Leo Yee-Sin, Siyan Yi, Yik-Ying Teo, Poovorawan Yong, Victor Zamora-Mesía, Anne Øvrehus Hit paper breakdown →	2022	128
14	Adherence to Antiretroviral Therapy During and After Pregnancy: Cohort Study on Women Receiving Care in Malawi's Option B+ Program Clinical Infectious Diseases ·Andreas D. Haas, Malango Msukwa, Matthias Egger, Lyson Tenthani, Hannock Tweya, Andreas Jahn, Oliver Jintha Gadabu, Kali Tal, Luisa Salazar‐Vizcaya, Janne Estill, Adrian Spoerri, Nozgechi Phiri, Frank Chimbwandira, Joep J. van Oosterhout, Olivia Keiser	2016	126
15	Rates and Predictors of Failure of First-line Antiretroviral Therapy and Switch to Second-line ART in South Africa JAIDS Journal of Acquired Immune Deficiency Syndromes ·Matthew P. Fox, Gilles Van Cutsem, Janet Giddy, Mhairi Maskew, Olivia Keiser, Hans Prozesky, Robin Wood, Miguel A. Hernán, Jonathan A C Sterne, Matthias Egger, Andrew Boulle	2012	117
16	Firearm legislation and firearm mortality in the USA: a cross-sectional, state-level study The Lancet ·Bindu Kalesan, Matthew Mobily, Olivia Keiser, Jeffrey Fagan, Sandro Galea	2016	109
17	Public-Health and Individual Approaches to Antiretroviral Therapy: Township South Africa and Switzerland Compared PLoS Medicine ·Olivia Keiser, Catherine Orrell, Matthias Egger, Robin Wood, Martin W. G. Brinkhof, Hansjakob Furrer, Gilles Van Cutsem, Bruno Ledergerber, Andrew Boulle, (unknown)	2008	108
18	Suicide in HIV-Infected Individuals and the General Population in Switzerland, 1988–2008 American Journal of Psychiatry ·Olivia Keiser, Adrian Spoerri, Martin W. G. Brinkhof, Barbara Hasse, Angèle Gayet‐Ageron, Frédéric Tissot, Anna Christen, Manuel Battegay, Patrick Schmid, Enos Bernasconi, Matthias Egger, (unknown)	2009	108
19	Risk Factors for Anal Cancer in Persons Infected With HIV: A Nested Case-Control Study in the Swiss HIV Cohort Study American Journal of Epidemiology ·Barbara Bertisch, Silvia Franceschi, M. Lise, P Vernazza, Olivia Keiser, F. Schöni-Affolter, Christine Bouchardy, Silvia Dehler, Fabio Levi, Gernot Jundt, S.M. Ess, Michael Pawlita, Helen Kovari, Gilles Wandeler, Alexandra Calmy, Matthias Cavassini, M Stöckle, Gary M. Clifford, (unknown)	2013	100
20	Virologic Failure and Second-Line Antiretroviral Therapy in Children in South Africa—The IeDEA Southern Africa Collaboration JAIDS Journal of Acquired Immune Deficiency Syndromes ·Mary‐Ann Davies, Harry Moultrie, Brian Eley, Helena Rabie, Gilles Van Cutsem, Janet Giddy, Robin Wood, Karl‐Günter Technau, Olivia Keiser, Matthias Egger, Andrew Boulle	2010	97

About Olivia Keiser

Olivia Keiser is a scholar working on Infectious Diseases, Epidemiology, Modeling and Simulation, Hepatology and Health, having authored 201 papers that have together received 7.2k indexed citations. Recurring topics across this work include HIV/AIDS Research and Interventions (59 papers), COVID-19 epidemiological studies (22 papers), Hepatitis C virus research (20 papers), HIV/AIDS drug development and treatment (18 papers), Viral Infections and Outbreaks Research (15 papers), Hepatitis B Virus Studies (8 papers), HIV Research and Treatment (8 papers) and COVID-19 Clinical Research Studies (7 papers). The work is most often cited by research in Infectious Diseases (3.7k citations), Virology (735 citations), Emergency Medicine (551 citations), Hepatology (355 citations) and Epidemiology (1.4k citations). Olivia Keiser has collaborated with scholars based in Switzerland, United States and South Africa. Frequent co-authors include Matthias Egger, Janne Estill, Andrew Boulle, Robin Wood, Gilles Wandeler, Mary‐Ann Davies, Sam Phiri, Martin Rickenbach, Hansjakob Furrer and Hannock Tweya. Their work appears in journals such as PLoS ONE, AIDS, Tropical Medicine & International Health, JAIDS Journal of Acquired Immune Deficiency Syndromes and Epidemiology and Infection.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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Olivia Keiser

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