Heartworm, West Nile virus and Lyme are just three examples of diseases spread by external parasites to humans and pets.With the Vectra?? line of veterinary-exclusive products, Ceva brings scientifically advanced solutions based on an innovative quick-kill insecticide, Dinotefuran coupled with an insect growth regulator and an acaricide (in Vectra 3D), to protect both cats and dogs against vectors