The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133,729
77,601
0.580
* Total Citation Counts Rankings
Ranking Based On Selection :2
First interest
Second interest
Vaccinology
Respiratory pathogens
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,164
43,067
0.661
* Total Citation Counts Rankings
Ranking Based On Selection :3
Running
Nutrition
Exercise Physiology
Insulin Resistance
Diabetes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,790
15,068
0.233
* Total Citation Counts Rankings
Ranking Based On Selection :4
Clinical Medicine
Epidemiology
Cancer
Infectious disease
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,814
41,007
0.958
* Total Citation Counts Rankings
Ranking Based On Selection :5
Polymer Physics and Polymer Nanocomposites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,679
17,698
0.435
* Total Citation Counts Rankings
Ranking Based On Selection :6
Vaccines
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,748
12,986
0.397
* Total Citation Counts Rankings
Ranking Based On Selection :7
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,418
24,940
0.820
* Total Citation Counts Rankings
Ranking Based On Selection :8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,213
15,247
0.560
* Total Citation Counts Rankings
Ranking Based On Selection :9
Tuberculosis
Vaccinology
Immunology
Clinical Trials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,143
14,162
0.542
* Total Citation Counts Rankings
Ranking Based On Selection :10
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,599
20,567
0.803
* Total Citation Counts Rankings
Ranking Based On Selection :11
Tuberculosis
HIV/AIDS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,304
11,137
0.440
* Total Citation Counts Rankings
Ranking Based On Selection :12
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,138
11,437
0.455
* Total Citation Counts Rankings
Ranking Based On Selection :13
HIV TB COVID HAEMATOLOFY
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,453
11,611
0.475
* Total Citation Counts Rankings
Ranking Based On Selection :14
hiv
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,464
12,324
0.549
* Total Citation Counts Rankings
Ranking Based On Selection :15
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,447
9,254
0.412
* Total Citation Counts Rankings
Ranking Based On Selection :16
HIV/AIDS surveillance
HIV-related stigma and discrimination
behavioural interventions
implementation research
Orphaned and
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,990
6,750
0.338
* Total Citation Counts Rankings
Ranking Based On Selection :17
Systems Virology
Emerging Viruses
HIV
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,920
14,825
0.744
* Total Citation Counts Rankings
Ranking Based On Selection :18
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,240
13,021
0.677
* Total Citation Counts Rankings
Ranking Based On Selection :19
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,645
6,110
0.328
* Total Citation Counts Rankings
Ranking Based On Selection :20
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,415
11,356
0.617
* Total Citation Counts Rankings
Ranking Based On Selection :21
Host pathogen interactions
B cell immunology
vaccines
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,628
16,448
0.933
* Total Citation Counts Rankings
Ranking Based On Selection :22
Mycobacterium tuberculosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,842
6,483
0.385
* Total Citation Counts Rankings
Ranking Based On Selection :23
Indian Diaspora
Religion
Hinduism
South Asians
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,538
7,898
0.478
* Total Citation Counts Rankings
Ranking Based On Selection :24
Virology and Child health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,426
15,952
0.971
* Total Citation Counts Rankings
Ranking Based On Selection :25
sleep
thermoregulation
brain
alcohol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,288
12,400
0.761
Bongani M Mayosi
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133,729
77,601
0.580
Shabir A. Madhi
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,164
43,067
0.661
First interest
Second interest
Vaccinology
Respiratory pathogens
Timothy D Noakes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,790
15,068
0.233
Running
Nutrition
Exercise Physiology
Insulin Resistance
Diabetes
Yoshan Moodley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,814
41,007
0.958
Clinical Medicine
Epidemiology
Cancer
Infectious disease
Surgery
Suprakas Sinha Ray
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,679
17,698
0.435
Lynn Morris
National Institute for Communicable Diseases
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,748
12,986
0.397
Alisha Wade
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,418
24,940
0.820
Dirk Blom
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,213
15,247
0.560
Willem Hanekom
Africa Health Research Institute
Somkhele, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,143
14,162
0.542
Cheryl Cohen
National Institute for Communicable Diseases
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,599
20,567
0.803
Gavin Churchyard
The Aurum Institute NPC
Johannesburg , South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,304
11,137
0.440
Debbie Bradshaw
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,138
11,437
0.455
Wendy Stevens|Stevens Wendy S, Stevens W, StevensW.S.
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,453
11,611
0.475
Carolyn Williamson
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,464
12,324
0.549
Midgley JJ
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,447
9,254
0.412
Leickness Chisamu Simbayi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,990
6,750
0.338
HIV/AIDS surveillance
HIV-related stigma and discrimination
behavioural interventions
implementation research
Orphaned and
Alex Sigal
Africa Health Research Institute
Somkhele, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,920
14,825
0.744
Onisimo Mutanga
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,240
13,021
0.677
Donald Kurtz
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,645
6,110
0.328
Petrus J De Vries
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,415
11,356
0.617
Jinal Bhiman
National Institute for Communicable Diseases
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,628
16,448
0.933
A Pym
Africa Health Research Institute
Somkhele, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,842
6,483
0.385
P. Pratap Kumar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,538
7,898
0.478
Vicky Baillie
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,426
15,952
0.971
Fiona Baker
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,288
12,400
0.761