Feb. 15, 2021
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Toxoplasmosis is a disease caused by the obligate intracellular protozoan Toxoplasma gondii. It is found in a variety of mammal and bird hosts. It is one of the most frequent causes of retinochoroiditis in humans. The ocular manifestations are frequently the result of the congenital form; however, a growing number of cases are occurring in immune-compromised individuals. Because of its predilation for the posterior pole and the subsequent loss of central vision, it is sometimes called "terrible toxo." (Contributed by Dr. Rosa Tang.