Nadia van Niekerk

2.3k total citations · 1 hit paper
38 papers, 1.5k citations indexed

About

Nadia van Niekerk is a scholar working on Epidemiology, Infectious Diseases and Microbiology. According to data from OpenAlex, Nadia van Niekerk has authored 38 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Epidemiology, 9 papers in Infectious Diseases and 5 papers in Microbiology. Recurrent topics in Nadia van Niekerk's work include Respiratory viral infections research (27 papers), Pneumonia and Respiratory Infections (25 papers) and Pneumocystis jirovecii pneumonia detection and treatment (13 papers). Nadia van Niekerk is often cited by papers focused on Respiratory viral infections research (27 papers), Pneumonia and Respiratory Infections (25 papers) and Pneumocystis jirovecii pneumonia detection and treatment (13 papers). Nadia van Niekerk collaborates with scholars based in South Africa, United States and United Kingdom. Nadia van Niekerk's co-authors include Shabir A. Madhi, Keith P. Klugman, Clare Cutland, Peter V. Adrian, Marta C. Nunes, Locadiah Kuwanda, Avy Violari, Andrea Hugo, Adriana Weinberg and Eric A. F. Simões and has published in prestigious journals such as New England Journal of Medicine, PLoS ONE and Clinical Infectious Diseases.

In The Last Decade

Nadia van Niekerk

38 papers receiving 1.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Influenza Vaccination of Pregnant Women and Protection of Their Infants

2014 389 citations Shabir A. Madhi, Clare Cutland et al. New England Journal of Medicine profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Nadia van Niekerk South Africa	19	1.2k	416	324	193	125	38	1.5k
Eliza Roy Bangladesh	17	1.3k 1.1×	344 0.8×	612 1.9×	161 0.8×	123 1.0×	23	1.8k
Sibongile Walaza South Africa	27	1.8k 1.5×	807 1.9×	316 1.0×	91 0.5×	79 0.6×	114	2.3k
Locadiah Kuwanda South Africa	26	1.7k 1.4×	355 0.9×	348 1.1×	274 1.4×	153 1.2×	38	2.1k
Jocelyn Moyes South Africa	29	1.6k 1.3×	850 2.0×	249 0.8×	77 0.4×	77 0.6×	80	2.2k
Leszek Szenborn Poland	20	816 0.7×	281 0.7×	136 0.4×	423 2.2×	94 0.8×	125	1.3k
Sharon Balter United States	14	832 0.7×	440 1.1×	196 0.6×	111 0.6×	41 0.3×	30	1.3k
Ángela Gentile Argentina	19	822 0.7×	335 0.8×	236 0.7×	395 2.0×	34 0.3×	119	1.3k
Zundong Yin China	19	663 0.5×	420 1.0×	268 0.8×	155 0.8×	66 0.5×	82	1.2k
José M. Bayas Spain	20	856 0.7×	415 1.0×	362 1.1×	171 0.9×	154 1.2×	64	1.3k
Hunter A. Hammill United States	16	685 0.6×	268 0.6×	276 0.9×	391 2.0×	143 1.1×	43	1.2k

Countries citing papers authored by Nadia van Niekerk

Since Specialization

Citations

This map shows the geographic impact of Nadia van Niekerk'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 Nadia van Niekerk with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Nadia van Niekerk more than expected).

Fields of papers citing papers by Nadia van Niekerk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nadia van Niekerk. 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 Nadia van Niekerk. The network helps show where Nadia van Niekerk may publish in the future.

Co-authorship network of co-authors of Nadia van Niekerk

This figure shows the co-authorship network connecting the top 25 collaborators of Nadia van Niekerk. A scholar is included among the top collaborators of Nadia van Niekerk 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 Nadia van Niekerk. Nadia van Niekerk is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Madhi, Shabir A., Susan Nzenze, Marta C. Nunes, et al.. (2020). Residual colonization by vaccine serotypes in rural South Africa four years following initiation of pneumococcal conjugate vaccine immunization. Expert Review of Vaccines. 19(4). 383–393. 13 indexed citations

Nunes, Marta C., Marta Moreira, Anthonet Koen, et al.. (2020). Bacterial nasopharyngeal carriage following infant immunization with pneumococcal conjugate vaccines according to a 2+1 schedule in children in South Africa: an exploratory analysis of two clinical trials. Expert Review of Vaccines. 19(12). 1177–1189. 3 indexed citations

Madhi, Shabir A., Marta Moreira, Anthonet Koen, et al.. (2020). Impact of HIV status and vaccination schedule on bacterial nasopharyngeal carriage following infant immunisation with the pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine in South Africa. Vaccine. 38(10). 2350–2360. 4 indexed citations

Izu, Alane, Marta C. Nunes, Avy Violari, et al.. (2018). Effect of HIV exposure and timing of antiretroviral therapy initiation on immune memory responses to diphtheria, tetanus, whole cell pertussis and hepatitis B vaccines. Expert Review of Vaccines. 18(1). 95–104. 9 indexed citations

Madhi, Shabir A., Anthonet Koen, Lisa Jose, et al.. (2017). Vaccination with 10-valent pneumococcal conjugate vaccine in infants according to HIV status. Medicine. 96(2). e5881–e5881. 14 indexed citations

Madhi, Shabir A., Clare Cutland, Locadiah Kuwanda, et al.. (2015). Influenza Vaccination of Pregnant Women and Protection of Their Infants. Obstetrical & Gynecological Survey. 70(1). 3–5. 125 indexed citations

Nzenze, Susan, Anne von Gottberg, Tinevimbo Shiri, et al.. (2015). Temporal Changes in Pneumococcal Colonization in HIV-infected and HIV-uninfected Mother-Child Pairs Following Transitioning From 7-valent to 13-valent Pneumococcal Conjugate Vaccine, Soweto, South Africa. The Journal of Infectious Diseases. 212(7). 1082–1092. 33 indexed citations

Dangor, Ziyaad, Gaurav Kwatra, Alane Izu, et al.. (2015). HIV-1 Is Associated With Lower Group BStreptococcusCapsular and Surface-Protein IgG Antibody Levels and Reduced Transplacental Antibody Transfer in Pregnant Women. The Journal of Infectious Diseases. 212(3). 453–462. 45 indexed citations

Nunes, Marta C., Clare Cutland, Stephanie Jones, et al.. (2015). Kinetics of Hemagglutination-Inhibiting Antibodies Following Maternal Influenza Vaccination Among Mothers With and Those Without HIV Infection and Their Infants. The Journal of Infectious Diseases. 212(12). 1976–1987. 54 indexed citations

10.

Madhi, Shabir A., Melissa K. Van Dyke, Nadia van Niekerk, et al.. (2015). Bacterial and Respiratory Viral Interactions in the Etiology of Acute Otitis Media in HIV-infected and HIV-uninfected South African Children. The Pediatric Infectious Disease Journal. 34(7). 753–760. 18 indexed citations

11.

Madhi, Shabir A., Alane Izu, Marta C. Nunes, et al.. (2015). Longitudinal study on Streptococcus pneumoniae, Haemophilus influenzae and Staphylococcus aureus nasopharyngeal colonization in HIV-infected and -uninfected infants vaccinated with pneumococcal conjugate vaccine. Vaccine. 33(23). 2662–2669. 13 indexed citations

12.

Albrich, Werner C., Shabir A. Madhi, Peter V. Adrian, et al.. (2014). Pneumococcal colonisation density: a new marker for disease severity in HIV-infected adults with pneumonia. BMJ Open. 4(8). e005953–e005953. 32 indexed citations

13.

Madhi, Shabir A., Clare Cutland, Locadiah Kuwanda, et al.. (2014). Influenza Vaccination of Pregnant Women and Protection of Their Infants. New England Journal of Medicine. 371(10). 918–931. 389 indexed citations breakdown →

14.

Nunes, Marta C., Michelle J. Groome, Locadiah Kuwanda, et al.. (2014). Acquisition of Streptococcus pneumoniae in South African children vaccinated with 7-valent pneumococcal conjugate vaccine at 6, 14 and 40 weeks of age. Vaccine. 33(5). 628–634. 12 indexed citations

15.

Izu, Alane, Avy Violari, Mark F. Cotton, et al.. (2014). Effect of HIV-1 exposure and antiretroviral treatment strategies in HIV-infected children on immunogenicity of vaccines during infancy. AIDS. 28(4). 531–541. 50 indexed citations

16.

Shiri, Tinevimbo, Marta C. Nunes, Peter V. Adrian, et al.. (2013). Interrelationship of Streptococcus pneumoniae, Haemophilus influenzae and Staphylococcus aureus colonization within and between pneumococcal-vaccine naïve mother-child dyads. BMC Infectious Diseases. 13(1). 483–483. 37 indexed citations

17.

Nunes, Marta C., Tinevimbo Shiri, Nadia van Niekerk, et al.. (2013). Acquisition of Streptococcus pneumoniae in Pneumococcal Conjugate Vaccine-naïve South African Children and Their Mothers. The Pediatric Infectious Disease Journal. 32(5). e192–e205. 30 indexed citations

18.

Groome, Michelle J., Anthonet Koen, Nadia van Niekerk, et al.. (2013). Immunogenicity of Seven-Valent Pneumococcal Conjugate Vaccine Administered at 6, 14 and 40 Weeks of Age in South African Infants. PLoS ONE. 8(8). e72794–e72794. 13 indexed citations

19.

Madhi, Shabir A., Herbert P. Ludewick, Locadiah Kuwanda, et al.. (2007). Seasonality, Incidence, and Repeat Human Metapneumovirus Lower Respiratory Tract Infections in an Area With a High Prevalence of Human Immunodeficiency Virus Type-1 Infection. The Pediatric Infectious Disease Journal. 26(8). 693–699. 36 indexed citations

20.

Ludewick, Herbert P., Yacine Abed, Nadia van Niekerk, et al.. (2005). Human Metapneumovirus Genetic Variability, South Africa. Emerging infectious diseases. 11(7). 1074–1078. 2 indexed citations

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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