Citation Rankings
Highly Cited Researchers
Africa Highly Cited Researchers Citation Rankings 2025
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 :126
internal medicine
medical education
clinical epidemiology and biostatistics
health systems management
knowledge translation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,664
11,231
0.263
* Total Citation Counts Rankings
Ranking Based On Selection :127
health sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,623
24,302
0.570
* Total Citation Counts Rankings
Ranking Based On Selection :128
Ecologie marine
Biochimie
Phytoplancton
Biosurveillance
HABs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,080
14,543
0.346
* Total Citation Counts Rankings
Ranking Based On Selection :129
Numerical Analysis
Financial Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,668
16,090
0.386
* Total Citation Counts Rankings
Ranking Based On Selection :130
Systematic Reviews and meta analysis
stastical modeling
research on communicable and noncommunicable diseases and Malnutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,480
40,752
0.982
* Total Citation Counts Rankings
Ranking Based On Selection :131
Télécommunication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,055
20,805
0.507
* Total Citation Counts Rankings
Ranking Based On Selection :132
Print journalism
development communication
public communication and speech writing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,768
18,921
0.464
* Total Citation Counts Rankings
Ranking Based On Selection :133
Public Health
Health Systems and Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,096
33,351
0.812
* Total Citation Counts Rankings
Ranking Based On Selection :134
Pulsars
gamma-ray astronomy
globular clusters
cosmic rays
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,678
15,150
0.372
* Total Citation Counts Rankings
Ranking Based On Selection :135
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 :136
Drug related study
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,922
39,282
0.960
* Total Citation Counts Rankings
Ranking Based On Selection :137
Childrens Literature
Childhood Studies
Margin and Marginality
Oral literature and Folklore as it intersects with Childrens literature
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,230
8,770
0.218
* Total Citation Counts Rankings
Ranking Based On Selection :138
Health Sciences
epidemiology
clinical research
public health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,949
24,858
0.622
* Total Citation Counts Rankings
Ranking Based On Selection :139
Quality Use of Medicines
Medication Safety
Clinical Pharmacy
Pharmacy Practice
Evidence-based
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,071
34,788
0.890
* Total Citation Counts Rankings
Ranking Based On Selection :140
corrosion
corrosion inhibition
corrosion of metals
adsorption
quantum chemical calculations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,952
25,688
0.659
* Total Citation Counts Rankings
Ranking Based On Selection :141
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,367
28,905
0.753
* Total Citation Counts Rankings
Ranking Based On Selection :142
Physics
Astrophysics
Computational Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,395
13,841
0.360
* Total Citation Counts Rankings
Ranking Based On Selection :143
Global Health
Epidemiology
Health Behavior
Health Communication and Human Nutrition (Child)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,912
37,613
0.942
* Total Citation Counts Rankings
Ranking Based On Selection :144
Nutrition interventions
Infectious diseases
Child and Maternal nutrition
NCD
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,430
37,765
0.983
* Total Citation Counts Rankings
Ranking Based On Selection :145
Medical and Health Science
Health Economics
Economic Evaluations in Healthcare
Health Policy
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,624
37,356
0.967
* Total Citation Counts Rankings
Ranking Based On Selection :146
Medical Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,500
8,613
0.230
* Total Citation Counts Rankings
Ranking Based On Selection :147
Artificial Intelligence
swarm optimization
Green Science
Metaverses
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,853
30,049
0.794
* Total Citation Counts Rankings
Ranking Based On Selection :148
Virology
virus evolution
genetic recombination
geminiviruses
sequence analysis software
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,550
22,759
0.606
* Total Citation Counts Rankings
Ranking Based On Selection :149
Macroecomomics
forecasting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,589
29,221
0.777
* Total Citation Counts Rankings
Ranking Based On Selection :150
Epidemiology
Public Health
Infectious Diseases
EHealth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,834
35,440
0.962
* Total Citation Counts Rankings
Rankings
12,928
2
1
Ranking Based On Selection: 126
Nelson Sewankambo
Makerere University
Kampala, Uganda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,664
11,231
0.263
internal medicine
medical education
clinical epidemiology and biostatistics
health systems management
knowledge translation
* Total Citation Counts Rankings
Rankings
12,946
40
1
Ranking Based On Selection: 127
Karl Peltzer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,623
24,302
0.570
* Total Citation Counts Rankings
Rankings
13,209
4
1
Ranking Based On Selection: 128
Draredja Mohamed Anis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,080
14,543
0.346
Ecologie marine
Biochimie
Phytoplancton
Biosurveillance
HABs
* Total Citation Counts Rankings
Rankings
13,418
41
2
Ranking Based On Selection: 129
Eben Mare
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,668
16,090
0.386
Numerical Analysis
Financial Mathematics
* Total Citation Counts Rankings
Rankings
13,515
15
2
Ranking Based On Selection: 130
Getenet Dessie
Bahir Dar University
Bahir Dar, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,480
40,752
0.982
Systematic Reviews and meta analysis
stastical modeling
research on communicable and noncommunicable diseases and Malnutrition
* Total Citation Counts Rankings
Rankings
13,741
5
1
Ranking Based On Selection: 131
Elaage Serghini
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,055
20,805
0.507
* Total Citation Counts Rankings
Rankings
13,895
25
1
Ranking Based On Selection: 132
Mofoluke Ibidunni Akoja
Babcock University
Ilishan-Remo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,768
18,921
0.464
Print journalism
development communication
public communication and speech writing
* Total Citation Counts Rankings
Rankings
13,722
24
4
Ranking Based On Selection: 133
Benjamin Uzochukwu
University of Nigeria
Nsukka, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,096
33,351
0.812
Public Health
Health Systems and Policy
* Total Citation Counts Rankings
Rankings
13,934
43
1
Ranking Based On Selection: 134
Christo Venter
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,678
15,150
0.372
Pulsars
gamma-ray astronomy
globular clusters
cosmic rays
* Total Citation Counts Rankings
Rankings
13,933
42
1
Ranking Based On Selection: 135
Suprakas Sinha Ray
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,679
17,698
0.435
* Total Citation Counts Rankings
Rankings
13,816
16
5
Ranking Based On Selection: 136
Jemal Abdela
Haramaya University
Haramaya, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,922
39,282
0.960
* Total Citation Counts Rankings
Rankings
14,208
2
1
Ranking Based On Selection: 137
Mpale Yvonne Mwansasu Silkiluwasha
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,230
8,770
0.218
Childrens Literature
Childhood Studies
Margin and Marginality
Oral literature and Folklore as it intersects with Childrens literature
* Total Citation Counts Rankings
Rankings
14,383
6
1
Ranking Based On Selection: 138
Chakib Nejjari|Chakib Nejjari
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,949
24,858
0.622
Health Sciences
epidemiology
clinical research
public health
* Total Citation Counts Rankings
Rankings
14,902
18
3
Ranking Based On Selection: 139
Tesfay Mehari Atey
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,071
34,788
0.890
Quality Use of Medicines
Medication Safety
Clinical Pharmacy
Pharmacy Practice
Evidence-based
* Total Citation Counts Rankings
Rankings
14,960
44
1
Ranking Based On Selection: 140
Eno E. Ebenso
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,952
25,688
0.659
corrosion
corrosion inhibition
corrosion of metals
adsorption
quantum chemical calculations
* Total Citation Counts Rankings
Rankings
15,322
26
3
Ranking Based On Selection: 141
Elsayed Salama
British University in Egypt
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,367
28,905
0.753
* Total Citation Counts Rankings
Rankings
15,306
1
1
Ranking Based On Selection: 142
Riaan Steenkamp
University of Namibia
Windhoek, Namibia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,395
13,841
0.360
* Total Citation Counts Rankings
Rankings
14,397
17
2
Ranking Based On Selection: 143
Abraham Tamirat Gizaw
Jimma University
Jimma, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,912
37,613
0.942
Global Health
Epidemiology
Health Behavior
Health Communication and Human Nutrition (Child)
* Total Citation Counts Rankings
Rankings
15,279
19
4
Ranking Based On Selection: 144
Meaza Girma Degefa
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,430
37,765
0.983
Nutrition interventions
Infectious diseases
Child and Maternal nutrition
NCD
* Total Citation Counts Rankings
Rankings
15,159
4
1
Ranking Based On Selection: 145
Martin Amogre Ayanore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,624
37,356
0.967
Medical and Health Science
Health Economics
Economic Evaluations in Healthcare
Health Policy
Public Health
* Total Citation Counts Rankings
Rankings
15,887
26
1
Ranking Based On Selection: 146
Chekwube Nwufo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,500
8,613
0.230
Medical Biochemistry
* Total Citation Counts Rankings
Rankings
15,620
27
6
Ranking Based On Selection: 147
Aboul Ella Hassanien Ali
Cairo University
Giza, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,853
30,049
0.794
Artificial Intelligence
swarm optimization
Green Science
Metaverses
* Total Citation Counts Rankings
Rankings
15,855
46
16
Ranking Based On Selection: 148
Darren Martin
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,550
22,759
0.606
Virology
virus evolution
genetic recombination
geminiviruses
sequence analysis software
* Total Citation Counts Rankings
Rankings
15,814
45
3
Ranking Based On Selection: 149
Rangan Gupta
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,589
29,221
0.777
* Total Citation Counts Rankings
Rankings
16,346
47
4
Ranking Based On Selection: 150
Peter Nyasulumed Mace
Stellenbosch University
Stellenbosch, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,834
35,440
0.962
Epidemiology
Public Health
Infectious Diseases
EHealth