Showing 21-30 of 133 results

Comparison of Sampling Methods for the Assessment of Indoor Microbial Exposure

April 19, 2012

Abstract    Indoor microbial exposure has been related to allergy and respiratory disorders. However, the lack of standardized sampling methodology is problematic when investigating dose-response relationships between exposure and health effects. In this study, different sampling methods were compared regarding their assessment of microbial exposures, …

Virus Removal and Transfer on Food Contact Surfaces by Cleaning Cloths

March 28, 2012

[CIRI Notes: This article advances knowledge about selecting various cloths to clean a variety of surfaces.  It also points up that cloths may vary in the amount of virus they are able to hold onto without transferring it back to the next surface cleaned – …

Daily Vacuuming of Mattresses Significantly Reduces Dust Mite Allergens, Bacterial Endotoxin, and Fungal Beta-glucan

March 28, 2012

Abstract BACKGROUND AND AIMS: Atopic patients are advised to cover their mattresses with occlusive coverings; however, these are not cheap. We investigated whether daily vacuum cleaning of mattresses significantly reduces content of house dust mite allergens, bacterial endotoxin, and fungal beta-glucan.   METHODS: Twenty volunteers …

Biofilms on Environmental Surfaces: Evaluation of the Disinfection Efficacy of a Novel Steam Vapor System

March 21, 2012

Abstract    Environmental surfaces in health care settings are often contaminated by microorganisms, and biofilms can develop on the surfaces in these settings. Steam vapor technology is of potential use for disinfection of biofilms on the environmental surfaces.   Methods We tested the disinfection efficacy …

New Methods to Clean ICU Rooms

March 21, 2012

Abstract   Hospital-acquired infections (HAI) represent the most common adverse event in the intensive care unit (ICU). Their prevalence is high and they are associated with increased morbidity and mortality. The environment plays a central role in the transmission of hospital-acquired pathogens (HAP) and in …

CDC

Mold Prevention Strategies and Possible Health Effects in the Aftermath of Hurricanes and Major Floods

March 14, 2012

Summary Extensive water damage after major hurricanes and floods increases the likelihood of mold contamination in buildings. This report provides information on how to limit exposure to mold and how to identify and prevent mold-related health effects. Where uncertainties in scientific knowledge exist, practical applications …

An Evaluation of Patient Area Cleaning in Three Hospitals Using a Novel Targeting Methodology

March 8, 2012

CIRI Note: This method, wherein specific surfaces (e.g., touch points) proposed to be cleaned are targeted with invisible fluorescent marks prior to the cleaning crew entering the area, and are then checked after cleaning (for removal) using a black light to determine which spots are …

Bacterial Killing by Dry Metallic Copper Surfaces

February 21, 2012

Abstract Metallic copper surfaces rapidly and efficiently kill bacteria. Cells exposed to copper surfaces accumulated large amounts of copper ions, and this copper uptake was faster from dry copper than from moist copper. Cells suffered extensive membrane damage within minutes of exposure to dry copper. …

Vacuuming Source of Indoor Exposure

January 6, 2012

Abstract   Vacuuming can be a source of indoor exposure to biological and nonbiological aerosols, although there are few data that describe the magnitude of emissions from the vacuum cleaner itself. We therefore sought to quantify emission rates of particles and bacteria from a large …

Stability and Bactericidal Activity of Chlorine Solutions

November 23, 2011

Abstract                To determine the stability of sodium hypochlorite (diluted household bleach) when stored for 30 days in various types of containers and to determine the efficacy of low concentrations of free available chlorine to inactivate test bacteria.   Design Laboratory-based study. Solutions of standard …