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Cystoisospora belli (Formerly Known as Isospora belli) 59
Fig. 7.3 Cystoisospora
belli oocyst
2
Mature
i oocysts with
sporozoites
Immature oocysts
with sporocysts
Immature oocysts
with sporoblasts
d 1
i = Infective Stage Oocysts in faeces
d = Diagnostic Stage
Sporozoites
4
3
Mature oocysts ASEXUAL Merozoites
Microgamete
Fig. 7.4 Life cycle of
Cystoisospora belli Fertilization
(Reproduced from
https://www.cdc.gov/ Occysts in faeces
dpdx/cystoisosporiasis/ Macrogamete
index.html) SEXUAL 5
