Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :26
HIV
Tuberculosis
Cryptococcosis
Immune Reconstitution Inflammatory Syndrome
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
294
249
0.847
* Total i10 IndexRankings
Ranking Based On Selection :27
HIV
tuberculosis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
290
233
0.803
* Total i10 IndexRankings
Ranking Based On Selection :28
Urology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
288
51
0.177
* Total i10 IndexRankings
Ranking Based On Selection :29
HIV
infectious diseases
children
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
286
186
0.650
* Total i10 IndexRankings
Ranking Based On Selection :30
Nutrition
Metabolism
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
275
270
0.982
* Total i10 IndexRankings
Ranking Based On Selection :31
Ticks
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
274
89
0.325
* Total i10 IndexRankings
Ranking Based On Selection :32
Health Economics
Public Health
Health Policy and Systems Research
Pharmaco-economics
Pharmaco-epidemiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
272
211
0.776
* Total i10 IndexRankings
Ranking Based On Selection :33
Stroke
Neurorehabilitation
Neurogenetics
Non-communicable diseases
Population health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
268
238
0.888
* Total i10 IndexRankings
Ranking Based On Selection :34
community-acquired pneumonia
pneumococcus
respiratory tract infections
virulence factors
human ciliated epithelium
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
264
151
0.572
* Total i10 IndexRankings
Ranking Based On Selection :35
Bioinformatics
Genomics
Phylogenetics
Viruses
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
259
221
0.853
* Total i10 IndexRankings
Ranking Based On Selection :36
Virology
virus evolution
genetic recombination
geminiviruses
sequence analysis software
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
256
200
0.781
* Total i10 IndexRankings
Ranking Based On Selection :37
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
254
57
0.224
* Total i10 IndexRankings
Ranking Based On Selection :38
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
253
84
0.332
* Total i10 IndexRankings
Ranking Based On Selection :39
Genetics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
252
58
0.230
* Total i10 IndexRankings
Ranking Based On Selection :40
Pharmacognosy
isolation and identification of biologically active leads from natural sources
microbial metabolism and semisyn
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
250
170
0.680
* Total i10 IndexRankings
Ranking Based On Selection :41
Microbiology
lactic acid bacteria
antimicrobial peptides
bacteriocins
probiotics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
245
179
0.731
* Total i10 IndexRankings
Ranking Based On Selection :42
Targeted Drug Delivery
Nanomedicines
Stimuli-Responsive Biomaterials
Molecular Pharma-Engineered Regenerative Medicines
Drug
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
243
188
0.774
* Total i10 IndexRankings
Ranking Based On Selection :43
Epidemiology and Public Health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
243
158
0.650
* Total i10 IndexRankings
Ranking Based On Selection :44
Malaria research
clinical trials
infectious diseases epidemiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
242
201
0.831
* Total i10 IndexRankings
Ranking Based On Selection :45
Biochemistry and Molecular Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
235
169
0.719
* Total i10 IndexRankings
Ranking Based On Selection :46
Biochemical & Molecular Toxicology
Chemoprevention
Nutrigenomics
Signal Transduction Mechanisms
Antioxidant Redox Mechanisms
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
233
194
0.833
* Total i10 IndexRankings
Ranking Based On Selection :47
virology
immunology
host/pathogen interactions
vaccines
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
232
175
0.754
* Total i10 IndexRankings
Ranking Based On Selection :48
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
229
171
0.747
* Total i10 IndexRankings
Ranking Based On Selection :49
Tuberculosis
Immunology
Biomarkers
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
228
200
0.877
* Total i10 IndexRankings
Ranking Based On Selection :50
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
228
163
0.715
Graeme Meintjes
University of Cape Town
Cape Town, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
294
249
0.847
HIV
Tuberculosis
Cryptococcosis
Immune Reconstitution Inflammatory Syndrome
Gary Maartens
University of Cape Town
Cape Town, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
290
233
0.803
Ahmed Shafik
Cairo University
Giza, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
288
51
0.177
Mark Cotton
Stellenbosch University
Stellenbosch, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
286
186
0.650
HIV
infectious diseases
children
Mahmoud Alagawany
Zagazig University
Sharqia, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
275
270
0.982
Nutrition
Metabolism
Ivan Horak
University of Pretoria
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
274
89
0.325
Obinna E. Onwujekwe
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
272
211
0.776
Health Economics
Public Health
Health Policy and Systems Research
Pharmaco-economics
Pharmaco-epidemiology
Mayowa Owolabi
University of Ibadan
Ibadan, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
268
238
0.888
Stroke
Neurorehabilitation
Neurogenetics
Non-communicable diseases
Population health
Charles Feldman
University of the Witwatersrand
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
264
151
0.572
community-acquired pneumonia
pneumococcus
respiratory tract infections
virulence factors
human ciliated epithelium
Tulio De Oliveira
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
259
221
0.853
Bioinformatics
Genomics
Phylogenetics
Viruses
Darren Martin
University of Cape Town
Cape Town, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
256
200
0.781
Virology
virus evolution
genetic recombination
geminiviruses
sequence analysis software
G. Gade
University of Cape Town
Cape Town, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
254
57
0.224
Ryo Takahashi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
253
84
0.332
Peter Beighton
University of Cape Town
Cape Town, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
252
58
0.230
Safwat A Ahmed
Suez Canal University
Ismailia, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
250
170
0.680
Pharmacognosy
isolation and identification of biologically active leads from natural sources
microbial metabolism and semisyn
Leon MT Dicks
Stellenbosch University
Stellenbosch, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
245
179
0.731
Microbiology
lactic acid bacteria
antimicrobial peptides
bacteriocins
probiotics
Yahya E. Choonara
University of the Witwatersrand
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
243
188
0.774
Targeted Drug Delivery
Nanomedicines
Stimuli-Responsive Biomaterials
Molecular Pharma-Engineered Regenerative Medicines
Drug
Adamson Muula
University of Malawi
Zomba, Malawi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
243
158
0.650
Epidemiology and Public Health
Seth Owusu Agyei
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
242
201
0.831
Malaria research
clinical trials
infectious diseases epidemiology
Olfat Shaker
Cairo University
Giza, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
235
169
0.719
Biochemistry and Molecular Biology
Olatunde Farombi
University of Ibadan
Ibadan, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
233
194
0.833
Biochemical & Molecular Toxicology
Chemoprevention
Nutrigenomics
Signal Transduction Mechanisms
Antioxidant Redox Mechanisms
Thumbi Ndung'U
Africa Health Research Institute
Somkhele, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
232
175
0.754
virology
immunology
host/pathogen interactions
vaccines
Laila Ahmed Rashed
Cairo University
Giza, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
229
171
0.747
Gerhard Walzl
Stellenbosch University
Stellenbosch, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
228
200
0.877
Tuberculosis
Immunology
Biomarkers
Lucy Gilson
University of Cape Town
Cape Town, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
228
163
0.715