Abstract
As a basic study about prevention of infection within a hospital, the authors attempted to isolate Ps. aeruginosa, Staph, aureus and other pathogens from the surface of the inside and the outlets of bath-tubs, waste water after bathing, faces of newborn babies, nurse's hands and air in the neonatal room. And bacteriological studies about disinfection for the above pathogens were also carried out.
The results obtained were as follows.
1. Ps. aeruginosa, Staph, aureus, Gram-positive cocci and Gram-negative bacilli were isolated in higher concentration from the surface of the inside of bath-tubs than in waste water after bathing.
From the above results the possibility of bacterial transmission through the mediation of bath-tubs among newborn babies in the neonatal room was considered serious. Therefore, it is necessary that disinfection of bath-tubs contaminated by pathogens should be carried out once per each newborn baby after each bathing.
2. Judging from the reliability of bactericidal effects and from the point of view of expense, the using of boiling water (above 70℃) as a disinfectant is the most suitable method.
3. It seemed that disinfection of the nurse's hands, the sponge and brushes for cleaning the bath-tubs and hands should also be carried out for every newborn baby.
