Removal of cockroach allergen from inner-city homes.

BACKGROUND: Allergen avoidance has been shown to improve the morbidity and physiology of asthma. Although cockroach allergen has been implicated in chronic asthma, little work has been reported on the feasibility of allergen removal from infested homes. OBJECTIVE: The objective of this study was to examine the effect of professional pest control and home cleaning on cockroach infestation and allergen concentrations in settled dust samples from the kitchens, bedrooms, and television-living rooms of inner-city homes. METHODS: Thirteen homes in inner-city Baltimore, Maryland, received a professional cleaning, with vacuuming and a thorough cleaning in the kitchen. Pest control technicians applied abamectin 0.05% gel to the kitchen and, to a limited extent, to the rest of the home and the cleaning was repeated. Technicians visited monthly from month 2 to month 8 to inspect, collect dust samples, and place passive cockroach traps. Bla g 1 concentrations in dust extract were measured by means of ELISA. RESULTS: The number of cockroaches captured in passive traps decreased rapidly in 11 homes, but complete extermination was achieved in only 7 homes. Bla g 1 concentrations were reduced by 93% in kitchens, 77% in television-living rooms, and 74% in bedrooms. The relative reduction in cockroach allergen was not related to successful extermination or to signs of poor house-cleaning. CONCLUSION: We concluded that cockroach extermination is feasible in inner-city homes but that standard house-cleaning procedures are only partially effective in removing residual allergen over 8 months.

Home intervention for in utero drug-exposed infants.

Each year in the United States, around 5.5% (or 230,000) infants are born to mothers who used illicit drugs during pregnancy. The untoward effects of in utero drug exposure (IUDE) include significant decreases in birthweight and length and head circumference, prematurity, and developmental problems. Intensive early intervention, including home-based interventions, is recognized as an effective method to improve cognitive development and reduce health problems in these high risk infants and children. Examination of home visit records of 20 IUDE infants during their first year of life revealed frequent health and social problems. Infectious disease symptoms were the most frequent problem encountered in the home during the physical assessment of the infants. Of note was the mothers' lack of basic parenting information (understanding signs of illness, basic nutrition, and infant development) which was then provided by the nurse during each home visit. Of concern was the lack of drug treatment sought by these mothers. Findings support the view that home visiting should be incorporated into the discharge planning of any IUDE infant in order to maintain these infants in the health care system and monitor their safety.