1.Treatment of oxyuriasis was undertaken in three institutionalized groups.
2.In the home J. C. 38 per cent of the individuals (23 girls and 35 boys) were found infected with Enterobius vermicularis. Rigid hygienic measures were carried out over a period of six weeks, but a 13 per cent increase in incidence occurred.
3.In the home H. H. 97 per cent of 122 boys, and in the home P. E. 81 per cent of 26 girls were found infected. Treatment of the infected boys and girls with Seal-Ins coated gentian violet medicinal in varying dosages resulted in a cure of approximately 90 per cent.
4.The untoward symptoms of gentian violet medication were not serious. Vomiting, although prevalent, was noted infrequently per individual dose; however, it was found to occur more frequently in females than in males.
5.The difference between the cure of the individual with gentian violet and the eradication of the infection in an institution is emphasized.