Dr. Francis S. Legario finished his PhD in Aquatic Pathobiology (Bacteriology) at the Institute of Aquaculture, University of Stirling, Scotland, United Kingdom under the Newton PhD Program of the British Council and the Department of Science and Technology (DOST), Philippines. He did postdoctoral fellowship at the Departments of Veterinary Microbiology and Pathology, Guru Angad Veterinary and Animal Sciences University (GADVASU), Ludhiana, India under the sponsorship of the Department of Science and Technology (DST), Government of India, and the Federation of Indian Chambers of Commerce Incorporated (FICCI) to study hypervirulent Aeromonas hydrophila infecting the farmed finfishes in the Punjab Region, India. Currently, he is a Senior Faculty Researcher and Associate Professor assigned at the Biotechnology and Microbiology Research Laboratories of the Iloilo Science and Technology University, Philippines. He trained in the proteomics of cyanobacteria bioactive peptides at the Faculty of Pharmacy and Environmental Sciences, Meijo University, Nagoya, Japan, and on biomanufacturing and biopharmaceuticals at Seoul National University, South Korea. He recently finished his training on Antimicrobial Resistance in Bacterial Pathogens – Asia at the Faculty of Tropical Medicine, Mahidol University, Thailand. He is also a visiting researcher at the Fisheries Biotechnology Center – National Fisheries Research and Development Institute (NFRDI) – Department of Agriculture, Philippines. He has published research works on streptococcosis and motile aeromonas septicaemia (MAS) in farmed tilapia in the Philippines. He has received research grants from DOST-PCAARRD, DOST-NRCP, and DOST-PCIEERD on research projects tackling the emerging and re-emerging bacterial infectious diseases affecting farmed fin fishes in the Philippines, antimicrobial resistance (AMR) in aquaculture, and biosynthesis of new secondary bioactive compounds from Philippine terrestrial actinomycetes.