Volume s1-15, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



It appears evident that no proof exists that any species of Eimeria inhabits the human body as a parasite.

Isospora has been reported to have been discovered in the feces of about 200 persons. Seventy-five per cent of these were found in British soldiers who served in the Eastern Mediterranean area during the World War. The rest of the cases, with few exceptions, were scattered throughout the World, in tropical and subtropical regions, and 96 per cent of all cases have occurred in males.

Evidence is presented to support the name Fantham 1917 as the name of the species which occurs in man. It is recognized, however, that the Isosporae, which are found in dogs and cats, are not adequately separated from this species.

A reservoir host seems necessary to explain the low incidence of the disease in man, which is evidently much below 0.1 per cent, even in areas in which the parasite has been demonstrated. This conclusion is strengthened by the self-limited nature of the disease in man.

There is no good evidence to support the contention that the parasite produces any symptoms except a diarrhea, which is mild and of a short duration, and mild abdominal distress; but in the majority of cases there are usually no symptoms at all.

Treatment apparently does not shorten the duration of the infection.

All the cases, which have been recorded, are listed and a new case from the Territory of Hawaii, a new location, is described.


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  • Received : 14 Nov 1934
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