*An important “One Health” interdisciplinary public health research project example... Research Environmental contamination with Toxocara eggs: a quantitative approach to estimate the relative contributions of dogs, cats and foxes, and to assess the efficacy of advised interventions in dogs Rolf Nijsse1*†, Lapo Mughini-Gras12†, Jaap A. Wagenaar13, Frits Franssen2 and Harm W. Ploeger1 Corresponding author: Dr. Rolf Nijsse Abstract - Background Environmental contamination with Toxocara eggs is considered the main source of human toxocariasis. The contribution of different groups of hosts to this contamination is largely unknown. Current deworming advices focus mainly on dogs. However, controversy exists about blind deworming regimens for >6-month-old dogs, as most of them do not actually shed Toxocara eggs. We aim to estimate the contribution of different non-juvenile hosts to the environmental Toxocara egg contamination and to assess the effects of different Toxocara-reducing interventions for dogs. … … Even though raw meat is considered to be an important source of human Toxocara infections in other countries [45], infection through the ingestion of embryonated eggs from the environment is by far the most important route in the Netherlands and other Western European countries [4], [15]. Infective Toxocara eggs can survive for several years in the environment; therefore, effective measures to reduce human exposure to Toxocara should mainly aim at reducing the environmental contamination with eggs. Models like the one presented here are useful to attempt to quantify the sources of Toxocara eggs in a given locality as to prioritize control interventions and to assess the expected impact of such interventions. … *NOTE: Frits Franssen, MD, PhD is a physician.  Dr. Franssen is working in concert with veterinarians, Drs. Rolf Nijsse, Lapo Mughini-Gras, Jaap A. Wagenaar and Rolf Ploeger.. Please read entire article at