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Structures ofToxoplasma gondiiTachyzoites, Bradyzoites, and Sporozoites and Biology and Development of Tissue Cysts
Author(s) -
J. P. Dubey,
David S. Lindsay,
C. A. Speer
Publication year - 1998
Publication title -
clinical microbiology reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 9.177
H-Index - 282
eISSN - 1070-6305
pISSN - 0893-8512
DOI - 10.1128/cmr.11.2.267
Subject(s) - toxoplasma gondii , biology , in vivo , protozoa , toxoplasmosis , in vitro , parasite hosting , apicomplexa , microbiology and biotechnology , virology , immunology , protozoal disease , malaria , antibody , biochemistry , world wide web , computer science
SUMMARY Infections by the protozoan parasite Toxoplasma gondii are widely prevalent worldwide in animals and humans. This paper reviews the life cycle; the structure of tachyzoites, bradyzoites, oocysts, sporocysts, sporozoites and enteroepithelial stages of T. gondii; and the mode of penetration of T. gondii. The review provides a detailed account of the biology of tissue cysts and bradyzoites including in vivo and in vitro development, methods of separation from host tissue, tissue cyst rupture, and relapse. The mechanism of in vivo and in vitro stage conversion from sporozoites to tachyzoites to bradyzoites and from bradyzoites to tachyzoites to bradyzoites is also discussed.

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