Human toxoplasmosis: which biological diagnostic tests are best suited to which clinical situations?

[congenital toxoplasmosis]

The Toxoplasma gondii parasite is a worldwide threat most particularly in fetal life and immunosuppression . In most clinical situations (except in some ocular cases ), correct detection or identification of toxoplasmosis requires biological analysis . This article considers the laboratory tools that have been developed in this field since the discovery of the pathogen , with emphasis on the most recent tests and how they can or should be used in different clinical situations . The authors also discuss the requirements and pitfalls that one should be aware of when biologically investigating this intriguing parasitosis .