1963 E. N. Kozloff in J. Ludvík et al. Progr. Protozool. (Proc. 1st Internat. Congr. Protozool., Prague, 1961) 78 It appears advisable to reconsider the terminology applied to stages in the life-histories of gregarines and coccidians... Zoite, an infective stage, produced by division of a zygote, and usually surrounded by an envelope which is either a zoitocyst or zygocyst.

1969 New Scientist 29 May 465/1 Another stage in the development of Toxoplasma is the cystic form or zoite.

1977 Jrnl. Protozool. 24 36/1 Electronmicroscopic studies revealed that the structure of T. gondii zoites (trophozoites, merozoites, ‘spores’, etc.) is similar to that of the zoites of the coccidia Eimeria and Isospora.

1979 Jrnl. Protozool. 26 437/1 Uninucleate, dinucleate, and multinucleate zoites.

1980 Jrnl. Parasitol. 66 67/1 Ultrastructurally, cysts of T[oxoplasma] gondii and H[ammondia] hammondi cannot be distinguished with certainty in skeletal muscle. Classification is based on the typical distribution of cysts and their zoites in the intermediate host.