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Lydia R. Leonardo, MS, DrPH
Professor 12
Department of Parasitology

Dr. Lydia R. Leonardo is presently a professor of Parasitology at the Department of Parasitology. She started her teaching career at the UP Manila College of Arts and Sciences in 1977. She finished her Master of Science in Marine Biology in UP Diliman in 1982 and for four more years until 1986 worked on the taxonomy and ecology of shallow water holothurians producing a handbook on this marine animal group with an Australian co-author. She also published taxonomic reports and first reports of certain holothurian species in the country.
Dr. Leonardo shifted to the field of Parasitology when UP Manila became the Health Sciences Center of the UP System. She finished her Doctor of Public Health program major in Parasitology at the College of Public Health in 1998. She transferred to the same college in 1995 as an associate professor in Parasitology and since then worked on various aspects of schistosomiasis from the biochemistry of the parasite to the control of the snail intermediate hosts to the distribution of the disease in the country. Results of these works are published in both ISI and non-ISI journals.
The use of imagery through technologies like RS and GIS was first demonstrated in health research by the work of Dr. Leonardo and Dr. Rivera. This research earned for them the Most Outstanding Research Award in 2006. Dr. Leonardo is presently the secretary of the Regional Network on Asian Schistosomiasis and other Zoonotic Helminths and is an active member of the GIS-based international organization Global Network for Geospatial Health. She is also a member of the editorial board of the organization’s journal, Geospatial Health. She also holds the vice presidency of the Philippine Society of Parasitology.
Dr. Leonardo shares her expertise with the Department of Health through research projects dealing with schistosomiasis. Results of these researches and other WHO-funded projects have been published in ISI journals. Her active collaborations with Japanese scientists from the Dokkyo Medical University, Obihiro University and Nagasaki University have resulted in several publications in ISI journals and are presently maintained up to the present. Dr. Leonardo is the first holder of the Dr. Mariano Yogore Professorial Chair.



  • Soares Magalhães RJ, Salamat MS, Leonardo LR, Gray DJ, Carabin H, Halton K, McManus DP, Williams GM, Rivera P, Saniel O, Hernandez L, Yakob L, McGarvey S,Clements A. Geographical distribution of human Schistosoma japonicum infection in The Philippines: tools to support disease control and further elimination. . International Journal of Parasitology. (2014); ;
  • Saniel O, Leonardo L., Rivera P. et al. A National Baseline Prevalence Survey of Schistosomiasis in the Philippines Using Stratified Two-Step Systematic Cluster Sampling Design.. Journal of Tropical Medicine. (2012); ;
  • Saniel OP., Leonardo LR., Rivera PT. et al. Prevalence Survey of Schistosomiasis in Mindanao and the Visayas, the Philippines. Parasitology International. International Publication Award. (2008); 57; 246-251
  • Leonardo, LR, Rivera PT, Saniel, OP, Villacorte EA,Crisostomo B, Hernandez L and et al.. Prevalence Survey of Schistosomiasis in Mindanao and the Visayas, the Philippines. Parasitology International . (2008); ;
  • Zhou, X.N., Leonardo, L.R.,Acosta, L.P., Johansen, M.V., Willingham, A.L., and Olveda, R.M. . Schistosomiasis and Other Zoonosis in Sout East Asia - Meeting Report of the 6th Regional Network for Asian Schistosomiasis. Southeast Asian Journal of Tropical Medicine and Public Health. (2007); 38; 406-409
  • Leonardo, LR, Crisostomo B.A., Solon, JA, Rivera, PT, and Villasper JM. Geographic Information Systems in Health Research and Services Delivery in the Philippines. Geospatial Health. (2007); 1 (2); 147-155
  • Moendeg, KJ, Angeles, JM, Goto, Y, Leonardo, LR, Kirinoki, M, Villacorte, EA, Rivera, PT, Inoue, N, Chigusa, Y, Kawazu, S. Development and optimization of cocktail-ELISA for a unified surveillance of zoonotic schistosomiasis in multiple host species.. Parasitol Res. 2015 Mar.. ; 114 (3); 1225-8