Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
Neglected Tropical Diseases (NTDs)
public health
epidemiology
molecular parasitology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,289
4,505
0.716
* Total Citation Counts Rankings
Ranking Based On Selection :2
Epidemiology
Health Systems
Sexual reproductive health
Community Health Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,864
2,589
0.670
* Total Citation Counts Rankings
Ranking Based On Selection :3
Epidemiology
NCDs
food environment
urbanization
COVID-19
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,488
766
0.308
* Total Citation Counts Rankings
Ranking Based On Selection :4
Public Health
HIV/AIDS
Molecular Medicine
Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,081
1,085
0.521
* Total Citation Counts Rankings
Ranking Based On Selection :5
Public Health: Health systems and maternal health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
828
576
0.696
* Total Citation Counts Rankings
Ranking Based On Selection :6
Public Health
Adolescent Health
Global Mental Health
Innovation
Knowledge Translation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99
87
0.879
* Total Citation Counts Rankings
Ranking Based On Selection :7
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66
55
0.833
* Total Citation Counts Rankings
Ranking Based On Selection :8
Neglected tropical diseases and Infectious Diseases
Epidemiology
Implementation Science
Public Health
Research Ethics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48
48
1.000
Sammy M. Njenga
Kenya Medical Research Institute
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,289
4,505
0.716
Neglected Tropical Diseases (NTDs)
public health
epidemiology
molecular parasitology
Maricianah Onono
Kenya Medical Research Institute
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,864
2,589
0.670
Epidemiology
Health Systems
Sexual reproductive health
Community Health Systems
Charles Obonyo|Charles O. Obonyo
Kenya Medical Research Institute
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,488
766
0.308
Epidemiology
NCDs
food environment
urbanization
COVID-19
Samoel Ashimosi Khamadi
Kenya Medical Research Institute
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,081
1,085
0.521
Public Health
HIV/AIDS
Molecular Medicine
Genetics
Echoka Elizabeth
Kenya Medical Research Institute
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
828
576
0.696
Public Health: Health systems and maternal health
Aggrey Gisiora Mokaya
Kenya Medical Research Institute
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99
87
0.879
Public Health
Adolescent Health
Global Mental Health
Innovation
Knowledge Translation
Judy Mwai
Kenya Medical Research Institute
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66
55
0.833
Bridget Kimani
Kenya Medical Research Institute
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48
48
1.000
Neglected tropical diseases and Infectious Diseases
Epidemiology
Implementation Science
Public Health
Research Ethics