Toxoplasma gondii is a protozoan that commonly infects animals and birds. Primary T. gondii infection in humans and other mammals is usually asymptomatic but leads to lifelong latent infection. Transmission to humans occurs by ingesting tissue cysts from undercooked meat or oocysts (released in the feces of cats). Latent cysts can give rise during immunosuppression to a severe localized reactivation producing, for example, toxoplasma encephalitis or chorioretinitis, with dissemination being common. (Martino et al. 2000; Martino et al. 2005; Tomblyn et al. 2009; Martino 2016).
Copyright 2019, EBMT and the Author(s).