ABSTRACT
A total of 31 species of mosquitoes belonging to 4 genera were collected in a one-year survey in the University of the Philippines campus, Diliman, Quezon City. Of these, eight species are known disease vectors. It appears therefore that it is very unlikely that a mosquito-borne epidemic could occur among the university population because of their low density, except for Japanese B encephalitis which is relatively rare in this country. (Author)
ABSTRACT
Tetramisole is effective against ascariasis in single dose treatment of 2.5 mgm/kilo of body weight. Of 357 cases treated, 86.86% were cured. It is comparatively non-toxic and its administration does not require any dietary or activity restriction of the patient.(Summary)
ABSTRACT
A total of 284 successfully treated cases of ascariasis among school children in Victoria, Laguna, were examined monthly after treatment for a period of seven months to determine the rate at which they were reinfected. During the first five months of observation 47.8% were reinfected. At the end of the seven months follow-up 80.9% were reinfected. Based on these observations, it appears that a once-a-year mass deworming program for school children is barely effective in lowering Ascaris transmission level in the community like the town of Victoria. (Summary and Conclusions)
ABSTRACT
A total of 373 successfully treated cases of ascariasis among school children with ages ranging from 9-14 years were periodically examined for reinfection rates. At the first follow-up which was 4 1/2 months after treatment, 68.63 per cent were found positive for ascaris ova while at the end of the period of observation which was approximately nine months after treatment, 89.54 per cent were reinfectedThis study indicates that children involved in mass treatment, where only a minimum amount of preventive measures and control have been undertaken, became reinfected at a fast rate thus wasting the efforts and medicines expended. (Summary and Conclusions)
ABSTRACT
Out of the 980 Trichuris worms recovered from 65 autopsy cases, 60% were female giving a sex rate of 1:1.5. The average worm load per person was 15. Out of 65 cases examined 85.9% harbored not more than 20 worms. The average egg count of the great variability in the egg counts per gram of stool per female worm was 696. On per female worm, egg would be unreliable in making estimates of the worm load of a given patient.(Summary)
ABSTRACT
Normal appendices from 69 autopsied cadavers obtained from the Philippine General Hospital were examined for the presence of adult helminth parasites. Ascaris, trichuris and enterobius adult worms were recovered in 11.6% of the appendices. While Trichuris was found to be the most common parasite in the appendix, both Trichuris and Enterobius were also recovered from the same appendix.(Summary)
ABSTRACT
An evaluation of the efficiency of fecal cultivation in modified Boeck and Drbohlav diphasic medium for the diagnosis of intestinal protozoan infections in comparison with 4 coverslip preparations of direct fecal smears and formalin-ether concentration technic was undertaken Of the three technics, cultivation has the highest percentage recovery efficiency for E. histolytica and T. hominis. Of 24 specimens positive for E. histolytica, cultivation detected 23 or 95.8 in contrast to 9 or 69.2 positive by combination of direct fecal smear and formalin-ether concentration. Forty-four specimens were positive by cultivation for T. hominis while only 16 of these or 37.2 were positive by direct fecal smear. Formalin-ether concentration is not suitable for the detection of T. hominis since the organisms are caught in the ether-debris layer In view of our experience, cultivation is recommended to be used routinely in the diagnosis of intestinal amoebiasis. (Summary)