The Apicomplexa is a globally prevalent group of parasitic protozoa that cause disease, from malaria in humans to livestock diseases such as coccidiosis, babesiosis (Red Water, Tick Fever) and East Coast Fever. With significant economic impacts, a number of Apicomplexa are also zoonotic, leading to grave potential public health consequences. Infection prevention efforts by immunisation or management of arthropod vector infestation have not been universally successful, and can have knock-on effects such as pollution of the environment and human food chain, and development of insecticidal or acaricidal resistance. This book highlights the similarities and differences between the various Apicomplexa infections, identifying those of greatest significance and suggesting sustainable approaches to better manage their impact on livestock productivity. Suitable for researchers and students of veterinary parasitology and related disciplines, this book is a valuable resource covering this important set of parasites.