Claudio Genchi was full Professor of Parasitic Diseases at the University of Milano (Italy) until December 2014. He was Founding Member and Past-President of the European Veterinary Parasitology College (EVPC), Honorary Member of American Heartworm Society (AHS), one of the Directors of the European Scientific Counsel Companion Animal Parasite (ESCCAP) and President of the European Society of Dirofilariosis and Angiostrongylosis (ESDA). He is Co-Editor in Chief of Veterinary Parasitology and member of the Editorial Board of several international scientific journals. Primary research areas were the molecular approach to the biology, genetics, immunology and pathogenesis of parasitic diseases, including vector-borne infections (filarial and tick-borne diseases) and experimental chemotherapy and control of endo- and ectoparasites. He is co-author of more 250 papers published in international, peer-reviewed journals, and chapters in international scientific books, most of which deal with filarial infections (Dirofilaria immitis and D. repens) in dogs and cats, and in human beings. He is leader of one of the research teams involved in the study of Wolbachia, the bacterial endosymbiont of filarial nematodes. His team first identified these bacteria by molecular studies in D. immitis in 1995.