FILARIASIS STUDIES IN SULU ARCHIPELAGO.
PHILIPPINES UNIV MANILA INST OF HYGIENE
Pagination or Media Count:
The objectives of the study are as follows 1 Extent and distribution of filariasis in the other islands of Sulu archipelago 2 attempt to correlate the abaca industry with filariasis prevalence 3 attempt to determine explanation for the difference in staining reaction of the sheath of W. bancrofti microfilaria in dilute Giemsa 4 attempt to develop some serologic tests for filariasis diagnosis. Night blood smears were taken among the inhabitants of Sulu provinces, noting the presence or absence of abaca, and presence or absence of fresh water swamps. Smears were stained with dilute Giemsa and examined at the Institute of Hygiene, data were analyzed statistically. Out of 9 municipalities so far covered 6 were found endemic for filariasis with an overall prevalence rate of 3.1 per cent as compared to 11.4 for Jolo island. There is the trend of increase prevalence after the age of 20, with males having higher rates over the females. Of 71 microfilaremia cases, 6 were due to B. malayi while the rest were those of W. bancrofti. Four of the B. malayi cases came from Siasi and 2 from Tandu Bas. In contrast, no malayan filariasis were found in 526 microfilaremia cases from Jolo island, all were W. bancrofti. The higher the endemicity of filariasis, the more chances for both sexes becoming infected and the lower the endemicity the higher the prevalence rate among males compared to the females, probably because of occupation factor. Results seem to show some parallel trends in microfilaremia and extent of land utilization for abaca. Author
- Medicine and Medical Research