抄録
1. As the place of pinworm infection, the primary school must be regarded as of great importance, especially the frequent occurence of infection towards the next seat in order deserves a special attention.
2. The infection towards the next seat in order is considered to be due to the frequent chance of contacts with hands and of lending and borrowing of school paraphernalia and something else between class-mates sitting next seat.
3. For cleaning the floor in the class-room or corridor, the wet dust-cloth should be used instead of the use of broom.
