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
Haematology
Immunology
Blood Group Serology
Blood Transfusion Science
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,649
33,197
0.987
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Physiology
Non Communicable Diseases e.g Hypertension
Diabetes
orphan care and trauma
Trafficking in Person prevention
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,246
17,832
0.767
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Feeding management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,598
4,233
0.311
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Agriculture
Environment
Plant Sciences
Forestry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,340
3,455
0.471
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Emerging contaminants
circular bioeconomy
(eco)hydrology
remediation
health risk assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,723
5,937
0.883
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Immunology of infectious diseases HIV/AIDS
TB
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,464
1,814
0.281
* Total Citation Counts Rankings
Ranking Based On Selection: 7
environmental
agronomy and agricultural sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,425
3,350
0.521
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Agroecology
Agronomy
Soil science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,099
4,161
0.682
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Microbiology
Environmental Biotechnology
Food Microbiology
Fermentation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,291
1,705
0.397
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Adolescent Health
TB
HIV
COVID-19
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,766
2,053
0.545
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Agrometeorology
Climate Sciences
Farming Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,531
2,211
0.626
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Soil fertility management
C and N cycling
Biological nitrogen fixation
Climate change adaptation
Farming systems analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,137
1,727
0.551
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Integrated Water Resources Management
Water Systems Management
Climate-resilient Development
Water Supply and Sanitation
Water Quality Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,075
1,769
0.575
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Environmental Science
Remote Sensing
Sustainable Development Goals
Geography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,875
2,654
0.923
* Total Citation Counts Rankings
Ranking Based On Selection: 15
ethnoveterinary
moringa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,850
1,707
0.599
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Housing
Environmental Planning
Urbanisation
Resilience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,622
1,943
0.741
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Nephrology
HIV Medicine
Adolescents
Essential Medicines
Rational Use of Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,550
1,341
0.526
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Veterinary Microbiology
Zoonotic diseases
Biosafety and Biosecurity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,544
1,487
0.585
* Total Citation Counts Rankings
Ranking Based On Selection: 19
HIV
Schistosomiasis
Traditional medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,460
969
0.394
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Computer-aided Drug discovery and development (CADD)
Malaria
Tuberculosis
Infectious diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,344
2,147
0.916
* Total Citation Counts Rankings
Ranking Based On Selection: 21
soil science
soil and water management
agronomy
environmental science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,322
935
0.403
* Total Citation Counts Rankings
Ranking Based On Selection: 22
allergy
HIV
clinical immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,291
1,137
0.496
* Total Citation Counts Rankings
Ranking Based On Selection: 23
World prehistory
archaeology of farming communities
eastern and southern Africa
archaeological theory
heritage management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,235
898
0.402
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Conservation Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,181
636
0.292
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Mathematical Biology and Dynamical Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,175
1,230
0.566
Emmanuel Ifeanyi Obeagu
Africa University
Mutare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,649
33,197
0.987
Haematology
Immunology
Blood Group Serology
Blood Transfusion Science
Public Health
Jephat Chifamba
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,246
17,832
0.767
Physiology
Non Communicable Diseases e.g Hypertension
Diabetes
orphan care and trauma
Trafficking in Person prevention
Joseph Francis
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,598
4,233
0.311
Justice Nyamangara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,340
3,455
0.471
Agriculture
Environment
Plant Sciences
Forestry
Willis Gwenzi|Gwenzi W, Gwenzi Willis, W Gwenzi
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,723
5,937
0.883
Emerging contaminants
circular bioeconomy
(eco)hydrology
remediation
health risk assessment
Lynn S. Zijenah
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,464
1,814
0.281
Immunology of infectious diseases HIV/AIDS
TB
Paul Mapfumo
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,425
3,350
0.521
environmental
agronomy and agricultural sciences
Regis Chikowo
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,099
4,161
0.682
Agroecology
Agronomy
Soil science
Wilson Parawira
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,291
1,705
0.397
Microbiology
Environmental Biotechnology
Food Microbiology
Fermentation
Tsitsi Bandason
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,766
2,053
0.545
Adolescent Health
TB
HIV
COVID-19
Walter Mupangwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,531
2,211
0.626
Agrometeorology
Climate Sciences
Farming Systems
Florence Mtambanengwe
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,137
1,727
0.551
Soil fertility management
C and N cycling
Biological nitrogen fixation
Climate change adaptation
Farming systems analysis
Innocent Nhapi
Chinhoyi University of Technology
Chinhoyi, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,075
1,769
0.575
Integrated Water Resources Management
Water Systems Management
Climate-resilient Development
Water Supply and Sanitation
Water Quality Management
David Chikodzi
Great Zimbabwe University
Masvingo, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,875
2,654
0.923
Environmental Science
Remote Sensing
Sustainable Development Goals
Geography
Busani Moyo
Gwanda State University
Gwanda, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,850
1,707
0.599
ethnoveterinary
moringa
Innocent Chirisa
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,622
1,943
0.741
Housing
Environmental Planning
Urbanisation
Resilience
Ndhlovu, Chiratidzo Ellen
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,550
1,341
0.526
Nephrology
HIV Medicine
Adolescents
Essential Medicines
Rational Use of Medicine
Gift Matope
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,544
1,487
0.585
Veterinary Microbiology
Zoonotic diseases
Biosafety and Biosecurity
Exnevia Gomo
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,460
969
0.394
Grace Mugumbate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,344
2,147
0.916
Computer-aided Drug discovery and development (CADD)
Malaria
Tuberculosis
Infectious diseases
Phillip Nyamugafata
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,322
935
0.403
soil science
soil and water management
agronomy
environmental science
En Sibanda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,291
1,137
0.496
allergy
HIV
clinical immunology
Gilbert Pwiti
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,235
898
0.402
World prehistory
archaeology of farming communities
eastern and southern Africa
archaeological theory
heritage management
Peter Mundy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,181
636
0.292
Claver Pedzisai Bhunu
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,175
1,230
0.566
Mathematical Biology and Dynamical Systems