Richard Lessells

Centre for the AIDS Programme of Research in South Africa

Also affiliated with University of KwaZulu-Natal

MedicineImmunology and Microbiology

Pilot corpus only

This score is computed over theSindex pilot corpus and does not cover the full scientific literature. Scores are relative to papers we have ingested — papers, authors, and institutions outside the pilot are not represented. Methodology.

Top 1%percentile

5.0Author DataRank

Indexed papers

3in pilot corpus

datarank_citation_only_1hop_v6· scope data_onlyMethodology

Why this DataRank?

An author's DataRank is the sum of the DataRanks of all 3 indexed papers attributed to them. A prolific author with many moderate-impact papers can outrank one with a single high-impact paper.

Author scores recompute whenever paper DataRanks are refreshed, so this number lags the underlying paper scores by at most one batch run.

Read the full methodology →

The highest-impact dataset this researcher has shared, ranked by DataRank — the single contribution doing the most to lift their data-sharing standing.

Early transmission of SARS-CoV-2 in South Africa: An epidemiological and phylogenetic report

International Journal of Infectious Diseases(2020)10.1016/j.ijid.2020.11.128

Top 5%

4.8DataRank

Top 5%100 citations

Sureshnee Pillay, Eduan Wilkinson, Houriiyah Tegally, Ilya Sinayskiy, Maria Schuld +14 more

Papers

Driven by 58 papers — median percentile 41. Top paper: “Emergence of SARS-CoV-2 Omicron lineages BA.4 and BA.5 in South Africa”.

Emergence of SARS-CoV-2 Omicron lineages BA.4 and BA.5 in South Africa

Nature Medicine(2022)10.1038/s41591-022-01911-2

N/A

14.5DataRank · unranked

697 citations

Monika Moir, Josie Everatt, Marta Giovanetti, Cathrine Scheepers, Eduan Wilkinson +90 more

Early transmission of SARS-CoV-2 in South Africa: An epidemiological and phylogenetic report

International Journal of Infectious Diseases(2020)10.1016/j.ijid.2020.11.128

Top 5%

4.8DataRank

Top 5%100 citations

Sureshnee Pillay, Eduan Wilkinson, Houriiyah Tegally, Ilya Sinayskiy, Maria Schuld +14 more

Reduced efficacy of HIV-1 integrase inhibitors in patients with drug resistance mutations in reverse transcriptase

Nature Communications(2020)10.1038/s41467-020-19801-x

N/A

4.0DataRank · unranked

83 citations

Michelle Moorhouse, Bryony Simmons, Túlio de Oliveira, Richard Lessells, Jennifer Giandhari +8 more

Virologic Failure and Drug Resistance After Programmatic Switching to Dolutegravir-based First-line Antiretroviral Therapy in Malawi and Zambia

Clinical Infectious Diseases(2024)10.1093/cid/ciae261

N/A

0.837DataRank · unranked

18 citations

Jacqueline Huwa, Guy Muula, Geldert Chiwaya, E. de la Banda, Shameem Buleya +11 more

Adherence Measured Using Electronic Dose Monitoring is Associated with Emergent Antiretroviral Resistance and Poor Outcomes in People with Human Immunodeficiency Virus/AIDS and Multidrug-Resistant Tuberculosis

Clinical Infectious Diseases(2022)10.1093/cid/ciac232

N/A

0.743DataRank · unranked

22 citations

Allison Wolf, Benjamin Chimukangara, James C. M. Brust, Richard Lessells, K. Rivet Amico +8 more

Population Effectiveness of Dolutegravir Implementation in Uganda: A Prospective Observational Cohort Study (DISCO), 48-Week Results

The Journal of Infectious Diseases(2024)10.1093/infdis/jiae260

N/A

0.602DataRank · unranked

15 citations

Winnie Muyindike, Victoria Nanfuka, Daniel Omoding, Nimusiima Komukama, Ian T. Barigye +13 more

SARS-CoV-2 infection in immunosuppression evolves sub-lineages which independently accumulate neutralization escape mutations

Virus Evolution(2023)10.1093/ve/vead075

N/A

0.544DataRank · unranked

13 citations

Yashica Ganga, Hylton Rodel, Houriiyah Tegally, Afrah Khairallah, Laurelle Jackson +15 more

Simplifying TREAtment and Monitoring for HIV (STREAM HIV): protocol for a randomised controlled trial of point-of-care urine tenofovir and viral load testing to improve HIV outcomes

BMJ Open(2021)10.1136/bmjopen-2021-050116

N/A

0.531DataRank · unranked

17 citations

Jienchi Dorward, Yukteshwar Sookrajh, Fathima Sayed, Justice Quame‐Amaglo, Cheryl Pillay +16 more

Recommendations on data sharing in HIV drug resistance research

PLOS Medicine(2023)10.1371/journal.pmed.1004293

N/A

0.360DataRank · unranked

10 citations

Mark J. Siedner, Susan J. Little, Santiago Ávila‐Ríos, Alisen Ayitewala, Ronald J. Bosch +50 more

HIV-1 subtype-specific drug resistance on dolutegravir-based antiretroviral therapy: protocol for a multicentre study (DTG RESIST)

BMJ Open(2024)10.1136/bmjopen-2024-085819

N/A

0.292DataRank · unranked

6 citations

Mamatha Sauermann, Tom Loosli, Stefanie Hossmann, Selma Riedo, Niko Beerenwinkel +7 more

Hybrid versus vaccine immunity of mRNA-1273 among people living with HIV in East and Southern Africa: a prospective cohort analysis from the multicentre CoVPN 3008 (Ubuntu) study

EClinicalMedicine(2025)10.1016/j.eclinm.2024.103054

N/A

0.269DataRank · unranked

5 citations

Asa Tapley, Aaron Hudson, Sufia Dadabhai, Bo Zhang, Nyaradzo Mgodi +93 more

HIV-1 drug resistance in people on dolutegravir-based ART: Collaborative analysis of cohort studies

medRxiv(2023)10.1101/2023.04.05.23288183

Top 59%

0.261DataRank

Top 59%3 citations

Stefanie Hossmann, Suzanne M Ingle, Hajra Okhai, Katharina Kusejko, Johannes P. Mouton +13 more

SARS-CoV-2 Omicron has extensive but incomplete escape of Pfizer BNT162b2 elicited neutralization and requires ACE2 for infection

medRxiv(2021)10.1101/2021.12.08.21267417

N/A

0DataRank · unranked

366 citations

Laurelle Jackson, David S. Khoury, Khadija Khan, Thandeka Moyo-Gwete, Houriiyah Tegally +29 more

SARS-CoV-2 evolved during advanced HIV disease immunosuppression has Beta-like escape of vaccine and Delta infection elicited immunity

medRxiv(2021)10.1101/2021.09.14.21263564

N/A

0DataRank · unranked

23 citations

Farina Karim, Gila Lustig, James Emmanuel San, Tandile Hermanus, Houriiyah Tegally +24 more

Clinical outcomes and cost-effectiveness of COVID-19 vaccination in South Africa

medRxiv(2021)10.1101/2021.05.07.21256852

N/A

0DataRank · unranked

19 citations

Kieran P. Fitzmaurice, Justine A. Scott, Guy Harling, Richard Lessells, Christopher Panella +4 more

Rapid epidemic expansion of the SARS-CoV-2 Omicron variant in southern Africa

Nature(2022)10.1038/s41586-022-04411-y

N/A

0DataRank · unranked

1910 citations

Sikhulile Moyo, Daniel G. Amoako, Houriiyah Tegally, Cathrine Scheepers, Christian L. Althaus +94 more

SARS-CoV-2 prolonged infection during advanced HIV disease evolves extensive immune escape

Cell Host & Microbe(2022)10.1016/j.chom.2022.01.005

N/A

0DataRank · unranked

241 citations

Farina Karim, Gila Lustig, James Emmanuel San, Tandile Hermanus, Houriiyah Tegally +23 more

Omicron BA.4/BA.5 escape neutralizing immunity elicited by BA.1 infection

Nature Communications(2022)10.1038/s41467-022-32396-9

N/A

0DataRank · unranked

187 citations

Farina Karim, Yashica Ganga, Mallory Bernstein, Zesuliwe Jule, Kajal Reedoy +30 more

Selection Analysis Identifies Clusters of Unusual Mutational Changes in Omicron Lineage BA.1 That Likely Impact Spike Function

Molecular Biology and Evolution(2022)10.1093/molbev/msac061

N/A

0DataRank · unranked

123 citations

Spyros Lytras, Alexander G. Lucaci, Wolfgang Maier, Björn Grüning, Stephen D. Shank +33 more

Omicron infection enhances Delta antibody immunity in vaccinated persons

Nature(2022)10.1038/s41586-022-04830-x

N/A

0DataRank · unranked

89 citations

Farina Karim, Sandile Cele, Kajal Reedoy, James Emmanuel San, Gila Lustig +52 more

Rapid epidemic expansion of the SARS-CoV-2 Omicron variant in southern Africa

Nature(2022)10.1038/d41586-021-03832-5

N/A

0DataRank · unranked

73 citations

Sikhulile Moyo, Daniel G. Amoako, Houriiyah Tegally, Cathrine Scheepers, Christian L. Althaus +94 more

Emergence and phenotypic characterization of the global SARS-CoV-2 C.1.2 lineage

Nature Communications(2022)10.1038/s41467-022-29579-9

N/A

0DataRank · unranked

38 citations

Josie Everatt, Daniel G. Amoako, Houriiyah Tegally, Constantinos Kurt Wibmer, Anele Mnguni +40 more

Ethics and governance challenges related to genomic data sharing in southern Africa: the case of SARS-CoV-2

The Lancet Global Health(2022)10.1016/s2214-109x(22)00417-x

N/A

0DataRank · unranked

35 citations

Nezerith Cengiz, Aneeka Domingo, Gonasagrie Nair, Adetayo Emmanuel Obasa, Richard Lessells +2 more

Assessing the clinical severity of the Omicron variant in the Western Cape Province, South Africa, using the diagnostic PCR proxy marker of RdRp target delay to distinguish between Omicron and Delta infections – a survival analysis

International Journal of Infectious Diseases(2022)10.1016/j.ijid.2022.02.051

N/A

0DataRank · unranked

25 citations

Mary‐Ann Davies, Alexa Heekes, Carolyn Williamson, Ziyaad Valley‐Omar, Diana Hardie +21 more

Omicron sub-lineages BA.4/BA.5 escape BA.1 infection elicited neutralizing immunity

medRxiv(2022)10.1101/2022.04.29.22274477

N/A

0DataRank · unranked

86 citations

Farina Karim, Yashica Ganga, Mallory Bernstein, Zesuliwe Jule, Kajal Reedoy +27 more

SARS-CoV-2 evolves increased infection elicited cell death and fusion in an immunosuppressed individual

medRxiv(2022)10.1101/2022.11.23.22282673

N/A

0DataRank · unranked

7 citations

Yashica Ganga, Hylton Rodel, Houriiyah Tegally, Laurelle Jackson, Sandile Cele +12 more

Assessing the clinical severity of the Omicron variant in the Western Cape Province, South Africa, using the diagnostic PCR proxy marker of RdRp target delay to distinguish between Omicron and Delta infections – a survival analysis

medRxiv(2022)10.1101/2022.01.13.22269211

N/A

0DataRank · unranked

3 citations

Mary‐Ann Davies, Alexa Heekes, Carolyn Williamson, Ziyaad Valley‐Omar, Diana Hardie +22 more

HIV-1 drug resistance in people on dolutegravir-based antiretroviral therapy: a collaborative cohort analysis

The Lancet HIV(2023)10.1016/s2352-3018(23)00228-x

N/A

0DataRank · unranked

130 citations

Stefanie Hossmann, Suzanne M Ingle, Hajra Okhai, Katharina Kusejko, Johannes P. Mouton +13 more

Dispersal patterns and influence of air travel during the global expansion of SARS-CoV-2 variants of concern

Cell(2023)10.1016/j.cell.2023.06.001

N/A

0DataRank · unranked

72 citations

Eduan Wilkinson, Joseph L.-H. Tsui, Monika Moir, Darren Martin, Anderson F. Brito +16 more

Clinical outcomes with second-line dolutegravir in people with virological failure on first-line non-nucleoside reverse transcriptase inhibitor-based regimens in South Africa: a retrospective cohort study

The Lancet Global Health(2023)10.1016/s2214-109x(23)00516-8

N/A

0DataRank · unranked

12 citations

Yukteshwar Sookrajh, Johan van der Molen, Thokozani Khubone, Lara Lewis, Richard Lessells +6 more

Evaluation of miniaturized Illumina DNA preparation protocols for SARS-CoV-2 whole genome sequencing

PLoS ONE(2023)10.1371/journal.pone.0283219

N/A

0DataRank · unranked

10 citations

James Emmanuel San, Derek Tshiabuila, Yeshnee Naidoo, Yusasha Pillay, Akhil Maharaj +8 more

An emerging clade of Chikungunya West African genotype discovered in real-time during 2023 outbreak in Senegal

medRxiv(2023)10.1101/2023.11.14.23298527

N/A

0DataRank · unranked

16 citations

Houriiyah Tegally, Yajna Ramphal, Ndiaye Seyni, Marièma Sarr, M.M. Diop +40 more

Comparing SARS-CoV-2 sequencing methodologies during early phase detection of the Delta variant in South Africa

Research Square(2023)10.21203/rs.3.rs-2310293/v1

N/A

0DataRank · unranked

0 citations

Derek Tshiabuila, Yajna Ramphal, Jennifer Giandhari, Carel J. van Heerden, Cheryl Baxter +9 more

Referee report. For: Uptake of same-day initiation of HIV treatment among adult men and women in Malawi, South Africa, and Zambia: the SPRINT retrospective cohort study [version 1; peer review: 2 approved with reservations]

Faculty of 1000 Research Ltd(2023)10.21956/gatesopenres.15737.r32933

N/A

0DataRank · unranked

0 citations

Richard Lessells

COVID-19 Vaccine Uptake and Effectiveness by Time since Vaccination in the Western Cape Province, South Africa: An Observational Cohort Study during 2020–2022

Vaccines(2024)10.3390/vaccines12060628

N/A

0DataRank · unranked

4 citations

Mary‐Ann Davies, Alexa Heekes, Hassan Mahomed, Anthony Hawkridge, Erna Morden +15 more

Geospatial and temporal mapping of detectable HIV-1 viral loads amid dolutegravir rollout in KwaZulu-Natal, South Africa

PLOS Global Public Health(2024)10.1371/journal.pgph.0003224

N/A

0DataRank · unranked

2 citations

Andrew Tomita, Richard Lessells, Sandrini Moodley, Kerri-Lee Francois, Aabida Khan +11 more

Dynamics and ecology of a multi-stage expansion of Oropouche virus in Brazil

medRxiv(2024)10.1101/2024.10.29.24316328

N/A

0DataRank · unranked

15 citations

Simon Dellicour, Jenicca Poongavanan, Carla Mavian, Graeme Dor, Vagner Fonseca +15 more

Predicting emergent Dolutegravir resistance in South Africa: A modelling study

medRxiv(2024)10.1101/2024.07.20.24310740

N/A

0DataRank · unranked

1 citations

Anthony Hauser, Johannes Josi, Na Han, Suzanne M Ingle, Ard van Sighem +12 more

HIV-1 subtype-specific drug resistance on dolutegravir-based antiretroviral therapy: protocol for a multicentre longitudinal study (DTG RESIST)

medRxiv(2024)10.1101/2024.05.23.24307850

N/A

0DataRank · unranked

0 citations

Mamatha Sauermann, Tom Loosli, Stefanie Hossmann, Selma Riedo, Niko Beerenwinkel +7 more

Reflective Evaluation of Next-Generation Sequencing Data during Early Phase Detection of the Delta Variant

OBM Genetics(2024)10.21926/obm.genet.2402239

Top 100%

0DataRank

Top 100%0 citations

Derek Tshiabuila, Yajna Ramphal, Jennifer Giandhari, Carel J. van Heerden, Cheryl Baxter +7 more

Predicted dolutegravir resistance in people living with HIV in South Africa during 2020–35: a modelling study

The Lancet Global Health(2025)10.1016/s2214-109x(24)00553-9

N/A

0DataRank · unranked

25 citations

Na Han, Anthony Hauser, Johannes Josi, Suzanne M Ingle, Ard van Sighem +12 more

Travel-associated international spread of Oropouche virus beyond the Amazon

Journal of Travel Medicine(2025)10.1093/jtm/taaf018

N/A

0DataRank · unranked

20 citations

Felicidade Mota Pereira, Elaine Cristina de Oliveira, Janete Taynã Nascimento Rodrigues, Mariza Hoffmann Machado, Vagner Fonseca +53 more

Identifying genomic surveillance gaps in Africa for the global public health response to West Nile virus: a systematic review

The Lancet Microbe(2025)10.1016/j.lanmic.2025.101176

N/A

0DataRank · unranked

4 citations

Nikita Sitharam, L. Marije Hofstra, Graeme Dor, Gaspary Mwanyika, Martina L. Reichmuth +60 more

The effect of long-acting cabotegravir and rilpivirine treatment on drug resistance in South Africa: a modelling study

The Lancet Global Health(2025)10.1016/s2214-109x(25)00350-x

N/A

0DataRank · unranked

3 citations

Tom Loosli, Nanina Anderegg, Anthony Hauser, Johannes Josi, Mary‐Ann Davies +6 more

Approaches to the Management of Virologic Failure on Dolutegravir-Based Antiretroviral Therapy in the 50 Countries With the Highest Adult HIV Prevalence

Clinical Infectious Diseases(2025)10.1093/cid/ciaf444

N/A

0DataRank · unranked

2 citations

Richard Lessells, Winnie Muyindike, Lyra S. Johnson, Roger D. Kouyos, Tom Loosli +10 more

Rapid emergence of dolutegravir resistance on second-line dolutegravir-based ART

Southern African Journal of HIV Medicine(2025)10.4102/sajhivmed.v26i1.1701

N/A

0DataRank · unranked

1 citations

Richard Lessells, Jienchi Dorward, Mahomed‐Yunus S. Moosa, Yukteshwar Sookrajh, Pravi Moodley +3 more

Hybrid versus vaccine immunity of mRNA-1273 among people living with HIV in East and Southern Africa: a prospective cohort analysis from the multicentre CoVPN 3008 (Ubuntu) study

UNC Libraries(2025)10.17615/p4hj-9n46

N/A

0DataRank · unranked

0 citations

Jia Jin Kee, Mubiana Inambao, Essack Mitha, Dishiki Kalonji, William Brumskine +76 more

Cost-effectiveness of public health strategies for COVID-19 epidemic control in South Africa: a microsimulation modelling study

The Lancet Global Health(2020)10.1016/s2214-109x(20)30452-6

N/A

0DataRank · unranked

116 citations

Fatma M. Shebl, Julia H. A. Foote, Guy Harling, Justine A. Scott, Christopher Panella +14 more

Whole Genome Sequencing of SARS-CoV-2: Adapting Illumina Protocols for Quick and Accurate Outbreak Investigation during a Pandemic

Genes(2020)10.3390/genes11080949

N/A

0DataRank · unranked

96 citations

Jennifer Giandhari, Houriiyah Tegally, Eduan Wilkinson, Benjamin Chimukangara, Richard Lessells +12 more

Early transmission of SARS-CoV-2 in South Africa: An epidemiological and phylogenetic report

medRxiv(2020)10.1101/2020.05.29.20116376

N/A

0DataRank · unranked

47 citations

Sureshnee Pillay, Eduan Wilkinson, Houriiyah Tegally, Ilya Sinayskiy, Maria Schuld +14 more

High Resolution analysis of Transmission Dynamics of Sars-Cov-2 in Two Major Hospital Outbreaks in South Africa Leveraging Intrahost Diversity

medRxiv(2020)10.1101/2020.11.15.20231993

N/A

0DataRank · unranked

20 citations

Sinaye Ngcapu, Aquillah M. Kanzi, Houriiyah Tegally, Vagner Fonseca, Jennifer Giandhari +10 more

Cost-effectiveness of public health strategies for COVID-19 epidemic control in South Africa

medRxiv(2020)10.1101/2020.06.29.20140111

N/A

0DataRank · unranked

16 citations

Fatma M. Shebl, Julia H. A. Foote, Guy Harling, Justine A. Scott, Christopher Panella +13 more

Referee report. For: Models of service delivery for optimizing a patient’s first six months on antiretroviral therapy for HIV: an applied research agenda [version 1; peer review: 2 approved]

Faculty of 1000 Research Ltd(2020)10.21956/gatesopenres.14355.r29239

N/A

0DataRank · unranked

0 citations

Richard Lessells

Omicron extensively but incompletely escapes Pfizer BNT162b2 neutralization

Nature(2021)10.1038/s41586-021-04387-1

N/A

0DataRank · unranked

1193 citations

Laurelle Jackson, David S. Khoury, Khadija Khan, Thandeka Moyo-Gwete, Houriiyah Tegally +58 more

The emergence and ongoing convergent evolution of the SARS-CoV-2 N501Y lineages

Cell(2021)10.1016/j.cell.2021.09.003

N/A

0DataRank · unranked

276 citations

Steven Weaver, Houriiyah Tegally, James Emmanuel San, Stephen D. Shank, Eduan Wilkinson +17 more

A year of genomic surveillance reveals how the SARS-CoV-2 pandemic unfolded in Africa

Science(2021)10.1126/science.abj4336

N/A

0DataRank · unranked

237 citations

Marta Giovanetti, Houriiyah Tegally, James Emmanuel San, Richard Lessells, Diego F. Cuadros +95 more

Omicron extensively but incompletely escapes Pfizer BNT162b2 neutralization

Nature(2021)10.1038/d41586-021-03824-5

N/A

0DataRank · unranked

188 citations

Laurelle Jackson, David S. Khoury, Khadija Khan, Thandeka Moyo-Gwete, Houriiyah Tegally +29 more

Clinical outcomes and cost-effectiveness of COVID-19 vaccination in South Africa

Nature Communications(2021)10.1038/s41467-021-26557-5

N/A

0DataRank · unranked

58 citations

Kieran P. Fitzmaurice, Justine A. Scott, Guy Harling, Richard Lessells, Christopher Panella +4 more

Richard Lessells

Indexed papers

Top data-sharing exemplar

Papers