Objective　To explore the microorganism contaminat ion situation and disease incidence in family and requirements of disinfection. Methods　The sanitation conditions in 212 families in Shanghai were investigated, and 200 of them were taken samples for microbiolo gical test. Re sults　I n recent a year, members in 82.1% of families caught diseases caused by microorg anism infection. Only 18.4% of families usually used disinfectant, the disinfect ed object mostly was dishware. 22.8% of samples was contaminated seriously. Fungus was detected in 63.9% of samples. The average positive rate of HBsAg was 4.2%. Conclusions　Domestic environment was potentially cont aminated by microorganism.

This article introduces a American Nati onal Standard-Safe use and han dling of glutaraldehyde-based products in health care institution. It pro vides g uidelines for the safe use and handling of glutaraldehyde as a disinfectant and sterilant in heath care institution by design consideration, proper work practi ces, information on properties and vapor monitoring of glutaraldehyde, and perso nnel qualifications, training, protective attire and health consideration.