Annual report on the Medical Research Institute / 1909-.

  • Nigeria. Medical Research Institute.
Date:
[1915]
Catalogue details

Licence: Public Domain Mark

Credit: Annual report on the Medical Research Institute / 1909-. Source: Wellcome Collection.

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    27. A few grammes of the feces, immediately after voiding, were enclosed in a clean Petri dish and sent to the laboratory. Sufficient of this material, well mixed and moistened with water, to be thinly spread under a f in. square cover glass, was examined under a low power of the micro¬ scope. Negative results were not accepted until five such smears from each of three separate stools chosen at weekly intervals had been searched. 28. Ankylostome ova were found in 133, that is a percentage of nearly 98. The ova were detected in the first stool at the first examination in 80, at the second examination in 23, at the third in 13, at the fourth in six, and at the fifth in five. 20. Two or more stools had to be examined in only nine cases ; the results were positive at the first examination of the second stool in four, at the second examination in one, and at the fifth examination in one, the remaining three cases being negative after repeated search. 30. It was possible, then, to demonstrate the ova in the first specimen of foeces in 127 out of the 136 cases, and in 80 of these the ova were present in the first smear examined. 31. The three negative cases included one female attendant, one male and one female lunatic. 32. Eighty-eight subjects were chosen for treatment. The first group, made up of 19 adults, received in July 25 grains thymol thrice in the day time at intervals of four hours, on two successive days. No ill effects were observed to follow this heroic dosage. Ankylostome ova had been demon¬ strated in the faeces of all except one. 33. Five months after treatment, the feces were re-examined and four cases were considered free from ankylostomes, repeated search for the ova being unsuccessful. 34. Leaving out of account these four cases, and also the one in which no ova had been found before treatment, the following results were obtained from the remaining 14. 35. Ova had been found in the first smear from the first stool in four cases. When re-examined in December they were still present in the first stool, in the first smear in two cases, and in the second smear in the other two. 36. Cases in which ova were found in the second smear from the first stool in July numbered five. In December, the results were positive in the first smear from the first stool in four instances, and in the third smear in the remaining one. 37. There was one case in which ova had been found in the third smear from the first stool in July. When re-examined in December the ova were noted in the second smear of the first stool. 38. One case which showed ova in the fourth smear from the first stool in July showed them in the second smear from the first stool in December. 39. There were two cases in which ova had been demonstrated onlv in *y the fifth smear from the first stool in July, and in December they were found in the first smear in one, and at the fourth in the other. [260521] 1A
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