Mathilda Claassen

1.5k total citations
26 papers, 340 citations indexed

About

Mathilda Claassen is a scholar working on Infectious Diseases, Virology and Epidemiology. According to data from OpenAlex, Mathilda Claassen has authored 26 papers receiving a total of 340 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Infectious Diseases, 12 papers in Virology and 8 papers in Epidemiology. Recurrent topics in Mathilda Claassen's work include HIV/AIDS drug development and treatment (16 papers), HIV Research and Treatment (12 papers) and HIV/AIDS Research and Interventions (10 papers). Mathilda Claassen is often cited by papers focused on HIV/AIDS drug development and treatment (16 papers), HIV Research and Treatment (12 papers) and HIV/AIDS Research and Interventions (10 papers). Mathilda Claassen collaborates with scholars based in South Africa, United States and Netherlands. Mathilda Claassen's co-authors include Gert U. van Zyl, Wolfgang Preiser, Susan Engelbrecht, Lize van der Merwe, Mark F. Cotton, Helena Rabie, M. Zeier, Hans Prozesky, Stephen N.J. Korsman and Natasha T. Wood and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Clinical Infectious Diseases.

In The Last Decade

Mathilda Claassen

25 papers receiving 337 citations

Peers

Mathilda Claassen
Mathilda Claassen
Citations per year, relative to Mathilda Claassen Mathilda Claassen (= 1×) peers Zhongbao Zuo

Countries citing papers authored by Mathilda Claassen

Since Specialization
Citations

This map shows the geographic impact of Mathilda Claassen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Mathilda Claassen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Mathilda Claassen more than expected).

Fields of papers citing papers by Mathilda Claassen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Mathilda Claassen. 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 Mathilda Claassen. The network helps show where Mathilda Claassen may publish in the future.

Co-authorship network of co-authors of Mathilda Claassen

This figure shows the co-authorship network connecting the top 25 collaborators of Mathilda Claassen. A scholar is included among the top collaborators of Mathilda Claassen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Mathilda Claassen. Mathilda Claassen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Redfern, Andrew, Lilly M. Verhagen, Mathilda Claassen, et al.. (2024). Clinical spectrum of disease and outcomes in children with Omicron SARS-COV-2 infection in Cape Town, South Africa. SHILAP Revista de lepidopterología. 1(1). 27–33. 1 indexed citations
2.
Steegen, Kim, Gert U. van Zyl, Mathilda Claassen, et al.. (2023). Advancing HIV Drug Resistance Technologies and Strategies: Insights from South Africa’s Experience and Future Directions for Resource-Limited Settings. Diagnostics. 13(13). 2209–2209. 3 indexed citations
3.
Redfern, Andrew, Marieke M. van der Zalm, Pierre Goussard, et al.. (2023). Clinical Presentation and Outcome of Acute Respiratory Illnesses in South African Children During the COVID-19 Pandemic. The Pediatric Infectious Disease Journal. 42(8). 672–678. 3 indexed citations
4.
Woods, Conan K., et al.. (2023). Nano‐RECall provides an integrated pipeline for HIV‐1 drug resistance testing from Oxford Nanopore sequence data. Tropical Medicine & International Health. 28(3). 186–193. 5 indexed citations
5.
Redfern, Andrew, Marieke M. van der Zalm, Gert U. van Zyl, et al.. (2022). SARS-CoV-2 in children and their accompanying caregivers: Implications for testing strategies in resource limited hospitals. African Journal of Emergency Medicine. 12(3). 177–182. 2 indexed citations
6.
Preiser, Wolfgang, Gert U. van Zyl, Mathilda Claassen, et al.. (2021). Molecular characterisation and epidemiology of enterovirus-associated aseptic meningitis in the Western and Eastern Cape Provinces, South Africa 2018–2019. Journal of Clinical Virology. 139. 104845–104845. 13 indexed citations
7.
Ellsworth, Grant, Elizabeth A. Stier, Elizabeth Y. Chiao, et al.. (2021). Xpert HPV as a Screening Tool for Anal Histologic High-Grade Squamous Intraepithelial Lesions in Women Living With HIV. JAIDS Journal of Acquired Immune Deficiency Syndromes. 87(3). 978–984. 3 indexed citations
8.
Zalm, Marieke M. van der, Elisabetta Walters, Mathilda Claassen, et al.. (2020). High burden of viral respiratory co-infections in a cohort of children with suspected pulmonary tuberculosis. BMC Infectious Diseases. 20(1). 924–924. 7 indexed citations
9.
Zyl, Gert U. van, et al.. (2017). Moderate levels of preantiretroviral therapy drug resistance in a generalized epidemic. AIDS. 31(17). 2387–2391. 5 indexed citations
10.
Neogi, Ujjwal, Susan Engelbrecht, Mathilda Claassen, et al.. (2015). Mutational Heterogeneity in p6 Gag Late Assembly (L) Domains in HIV-1 Subtype C Viruses from South Africa. AIDS Research and Human Retroviruses. 32(1). 80–84. 13 indexed citations
11.
Zyl, Gert U. van, Tommy F. Liu, Mathilda Claassen, et al.. (2013). Trends in Genotypic HIV-1 Antiretroviral Resistance between 2006 and 2012 in South African Patients Receiving First- and Second-Line Antiretroviral Treatment Regimens. PLoS ONE. 8(6). e67188–e67188. 54 indexed citations
12.
Zyl, Gert U. van, Lize van der Merwe, Mathilda Claassen, M. Zeier, & Wolfgang Preiser. (2011). Antiretroviral resistance patterns and factors associated with resistance in adult patients failing NNRTI‐based regimens in the western cape, South Africa. Journal of Medical Virology. 83(10). 1764–1769. 34 indexed citations
13.
Zyl, Gert U. van, Mark F. Cotton, Mathilda Claassen, Charmaine Abrahams, & Wolfgang Preiser. (2010). SURVEILLANCE OF TRANSMITTED RESISTANCE TO ANTIRETROVIRAL DRUG CLASSES AMONG YOUNG CHILDREN IN THE WESTERN CAPE PROVINCE OF SOUTH AFRICA. The Pediatric Infectious Disease Journal. 29(4). 370–371. 10 indexed citations
14.
Zyl, Gert U. van, Lize van der Merwe, Mathilda Claassen, et al.. (2009). PROTEASE INHIBITOR RESISTANCE IN SOUTH AFRICAN CHILDREN WITH VIROLOGIC FAILURE. The Pediatric Infectious Disease Journal. 28(12). 1125–1127. 40 indexed citations
15.
Cotton, Mark F., et al.. (2009). Protease inhibitor resistance in South African children exposed to ritonavir as single protease inhibitor compared to children treated with lopinavir/ritonavir. SUNScholar (Stellenbosch University). 2 indexed citations
16.
Claassen, Mathilda, Gert U. van Zyl, & Wolfgang Preiser. (2008). Extraction buffer contaminated bacterially as a cause of invalid HIV-1 viral load results on the NucliSens EasyQ® system. Journal of Virological Methods. 150(1-2). 80–81. 5 indexed citations
17.
18.
Claassen, Mathilda, et al.. (2006). Pitfalls with rapid HIV antibody testing in HIV-infected children in the Western Cape, South Africa. Journal of Clinical Virology. 37(1). 68–71. 30 indexed citations
19.
Treurnicht, Florette K., et al.. (2002). Genotypic and phenotypic analysis of the env gene from South African HIV‐1 subtype B and C isolates. Journal of Medical Virology. 68(2). 141–146. 13 indexed citations
20.
Claassen, Mathilda. (1990). Automated CO2 Injection Control and Well Test Monitoring System. Permian Basin Oil and Gas Recovery Conference.

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026