Report on two experiments on the mosquito-malaria theory : instituted by the Colonial Office and the London School of Tropical Medicine / by Louis W. Sambon and George C. Low.

  • Sambon, Louis W.
Date:
1902
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Licence: In copyright

Credit: Report on two experiments on the mosquito-malaria theory : instituted by the Colonial Office and the London School of Tropical Medicine / by Louis W. Sambon and George C. Low. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

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    Professor Grassi was so much impressed with the strictly scientific manner in which our experiment was being con- ducted that he sent the following telegram to Dr. Manson: . Assembled in Britisb experimental hut, having wit- nessed perfect health experimenters amidst malaria- stricken inhabitants. Italian physicians congratulate Manson, who first formulated mosquito-malarial theory. —Grassi. Physical CoNDrriON of Neighbgoes. The habitation nearest our hut was, as already stated, Casa Fumaroli, at a distance of about 800 yards. In this place lived the Monaldi family, consisting of two men, two women, and three children. All of these suffered repeatedly from malarial fever during the summer, not- withstanding the quinine treatment of each attack. It seemed as if these people were being infected anew again and again. With the exception of one of them, malignant parasites were demonstrated in their blood. They had all suffered in previous years, and showed very evident signs of malarial cachexia. Signora Monaldi had an enormous splenic tumour. The condition of one of the children became so grave that he had to be transferred to the St. Spirito Hospital, in Eome. Casa Fumaroli was always full of Anopheles from the adjacent canals. In the kitchen a number of fowls used to roost at night in a partially closed recess under a stair leading to the bedroom above. This place invariably teemed with fully gorged Anopheles. The women told us that the younger fowls seemed to suffer considerably from bites of these insects, but the blood of such of the fowls as we examined showed no parasites. Most of the people in our neighbourhood were cachectic, and the peculiar facies of the disease was more or less apparent in all the residents. It was really a pitiful sight to go through the deserted village on a glorious Septem-