This book provides insights into the challenges posed by the disease of toxoplasmosis and strategies formulated to deal with them. A universal organism able to infect all birds and mammals, which has been predicted to contaminate one-third of the global human population, Toxoplasma gondii is the strongest parasite on Earth, and toxoplasmosis a serious zoonotic disease. A recently introduced methodology for fighting this disorder is the one health idea, with a foundational concept that disease affecting humans and animals in a particular environmental setup can only be handled when all the causative agents are involved. This book is a compilation of studies bringing together human and animal information related to toxoplasmosis, with contributions by authors from across the globe presenting novel insights on breakthroughs and research outcomes.