Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 1.468 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 2025
The Citation Rankings (Highly Cited Researchers) list 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.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Clinical Medicine
Epidemiology
Cancer
Infectious disease
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,314
40,048
0.904
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Epidemiology
Cancer Epidemiology
HPV Infection
STIs including HIV and HPV/HIV/EBV co-infection
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,364
31,169
0.907
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Astrophysics
cosmology
radio astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,507
29,848
0.756
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Bioinformatics
Genomics
Phylogenetics
Viruses
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,108
26,114
0.813
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
medicinal chemistry
peptides
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,951
23,386
0.418
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
HIV Prevention and Treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,763
17,485
0.400
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Open quantum systems
quantum information processing and communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,662
17,358
0.566
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Bioinformatics
Viral Genomics
Molecular Epidemiology
Genomic Surveillance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,860
14,817
0.997
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
diabetes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,284
14,715
0.763
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
HIV
tuberculosis
COVID-19
diagnostics
drug resistance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,331
13,181
0.860
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
HIV Pathogenesis
HIV progression
Infectious Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,418
12,964
0.554
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,885
12,030
0.605
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Economic Geology
Mineral Prospectivity Mapping
Exploration Geochemistry
Geological Remote Sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,429
11,453
0.534
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Organic synthesis
Cage chemistry
TB drugs
HIV PR inhibitors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,068
11,226
0.621
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Medicinal Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,153
10,775
0.667
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Catalysis
ozone
oxidation
green chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,118
9,392
0.621
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Plant Breeding
Plant Genetics
Quantitative Genetics
Crop Science
Agricultural Plant Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,656
9,185
0.788
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
Evolutionary biology
pollination biology
plant reproduction
chemical ecology
invasion biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,950
9,160
0.353
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Anesthesiology
Critical Care
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,980
9,008
0.601
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Sexual and Reproductive Health
Point-of-Care Testing Technologies
Tuberculosis
Global Health
Evidence synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,934
8,560
0.783
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
astrophysics
cosmology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,529
8,508
0.515
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
galaxy evolution
clusters of galaxies
cosmology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,124
8,500
0.527
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
conservation
ecology
zoology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,033
8,218
0.456
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Pathogenomics
Applied Bioinformatics
Molecular biology
Pharmacoinformatics
Data analytics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,100
7,958
0.982
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Epidemiology
climate change
health
biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,853
7,783
0.606
* Last 6 Years Citation Counts Rankings
Rankings
3,741
14
1
Ranking Based On Selection: 1
Yoshan Moodley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,314
40,048
0.904
Clinical Medicine
Epidemiology
Cancer
Infectious disease
Surgery
* Last 6 Years Citation Counts Rankings
Rankings
5,562
24
2
Ranking Based On Selection: 2
Themba Ginindza
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,364
31,169
0.907
Epidemiology
Cancer Epidemiology
HPV Infection
STIs including HIV and HPV/HIV/EBV co-infection
* Last 6 Years Citation Counts Rankings
Rankings
5,944
25
3
Ranking Based On Selection: 3
Yin-Zhe Ma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,507
29,848
0.756
Astrophysics
cosmology
radio astronomy
* Last 6 Years Citation Counts Rankings
Rankings
7,305
28
4
Ranking Based On Selection: 4
Tulio De Oliveira
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,108
26,114
0.813
Bioinformatics
Genomics
Phylogenetics
Viruses
* Last 6 Years Citation Counts Rankings
Rankings
8,715
40
5
Ranking Based On Selection: 5
Fernando Albericio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,951
23,386
0.418
* Last 6 Years Citation Counts Rankings
Rankings
13,602
56
6
Ranking Based On Selection: 6
Salim S. Abdool Karim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,763
17,485
0.400
HIV Prevention and Treatment
* Last 6 Years Citation Counts Rankings
Rankings
13,745
57
7
Ranking Based On Selection: 7
Francesco Petruccione
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,662
17,358
0.566
Open quantum systems
quantum information processing and communication
* Last 6 Years Citation Counts Rankings
Rankings
17,439
68
8
Ranking Based On Selection: 8
Houriiyah Tegally
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,860
14,817
0.997
Bioinformatics
Viral Genomics
Molecular Epidemiology
Genomic Surveillance
* Last 6 Years Citation Counts Rankings
Rankings
17,607
69
9
Ranking Based On Selection: 9
Ayesha Motala
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,284
14,715
0.763
* Last 6 Years Citation Counts Rankings
Rankings
20,791
80
10
Ranking Based On Selection: 10
Richard Lessells
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,331
13,181
0.860
HIV
tuberculosis
COVID-19
diagnostics
drug resistance
* Last 6 Years Citation Counts Rankings
Rankings
21,334
83
11
Ranking Based On Selection: 11
Koleka Mlisana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,418
12,964
0.554
HIV Pathogenesis
HIV progression
Infectious Diseases
* Last 6 Years Citation Counts Rankings
Rankings
23,872
90
12
Ranking Based On Selection: 12
Onisimo Mutanga
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,885
12,030
0.605
* Last 6 Years Citation Counts Rankings
Rankings
25,698
106
13
Ranking Based On Selection: 13
EJM (John) Carranza
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,429
11,453
0.534
Economic Geology
Mineral Prospectivity Mapping
Exploration Geochemistry
Geological Remote Sensing
* Last 6 Years Citation Counts Rankings
Rankings
26,507
108
14
Ranking Based On Selection: 14
Gert (Hg) Kruger|Hendrik Gerhardus Kruger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,068
11,226
0.621
Organic synthesis
Cage chemistry
TB drugs
HIV PR inhibitors
* Last 6 Years Citation Counts Rankings
Rankings
28,196
115
15
Ranking Based On Selection: 15
Beatriz G. De La Torre
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,153
10,775
0.667
* Last 6 Years Citation Counts Rankings
Rankings
34,673
145
16
Ranking Based On Selection: 16
Jonnalagadda, SB
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,118
9,392
0.621
Catalysis
ozone
oxidation
green chemistry
* Last 6 Years Citation Counts Rankings
Rankings
35,800
146
17
Ranking Based On Selection: 17
Hussien Shimelis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,656
9,185
0.788
Plant Breeding
Plant Genetics
Quantitative Genetics
Crop Science
Agricultural Plant Sciences
* Last 6 Years Citation Counts Rankings
Rankings
35,931
148
18
Ranking Based On Selection: 18
Steven D. Johnson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,950
9,160
0.353
Evolutionary biology
pollination biology
plant reproduction
chemical ecology
invasion biology
* Last 6 Years Citation Counts Rankings
Rankings
36,805
152
19
Ranking Based On Selection: 19
Reitze Rodseth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,980
9,008
0.601
Anesthesiology
Critical Care
* Last 6 Years Citation Counts Rankings
Rankings
39,691
160
20
Ranking Based On Selection: 20
Desmond Kuupiel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,934
8,560
0.783
Sexual and Reproductive Health
Point-of-Care Testing Technologies
Tuberculosis
Global Health
Evidence synthesis
* Last 6 Years Citation Counts Rankings
Rankings
40,014
164
21
Ranking Based On Selection: 21
Kavilan Moodley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,529
8,508
0.515
astrophysics
cosmology
* Last 6 Years Citation Counts Rankings
Rankings
40,078
165
22
Ranking Based On Selection: 22
Matt Hilton
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,124
8,500
0.527
galaxy evolution
clusters of galaxies
cosmology
* Last 6 Years Citation Counts Rankings
Rankings
42,064
173
23
Ranking Based On Selection: 23
Slotow, RH
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,033
8,218
0.456
* Last 6 Years Citation Counts Rankings
Rankings
44,057
184
24
Ranking Based On Selection: 24
Daniel Gyamfi Amoako
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,100
7,958
0.982
Pathogenomics
Applied Bioinformatics
Molecular biology
Pharmacoinformatics
Data analytics
* Last 6 Years Citation Counts Rankings
Rankings
45,459
188
25
Ranking Based On Selection: 25
Marlies Craig
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,853
7,783
0.606
Epidemiology
climate change
health
biology