After his PhD at Leiden University the Netherlands in 1990, he has started his career at the Central Veterinary Institute in Lelystad, and is currently heading several research projects on diagnostics and vaccine development at Wageningen Bioveterinary Research in Lelystad, the Netherlands.
Initially, he has performed molecular virology research aiming vaccine development for animal diseases caused by different viruses, such as Classical Swine Fever, Bovine Virus Diarrhoea, and Porcine Respiratory and Reproduction Syndrome. Since 2002, Piet is heading statutory tasks for many exotic viral diseases. In 2006, he has founded the “Network of Excellence for Epizootic Disease Diagnosis and Control” (EPIZONE). In 2013, Piet has been appointed as extraordinary professor at the North West University, Potchefstroom, South Africa.
In the last decade, his research has strongly focused on bluetongue virus and African horse sickness virus. Currently, Piet is leading research projects on vaccine development and vector competence. His special interests are molecular interactions and biological processes involved in replication of these insect borne orbiviruses in mammals (the host) and in arthropods (the insect vector). His research has led to a novel approach for vaccine development, named Disabled Infectious Single Animal vaccines.