Correlation of the Air–surface Nexus of Bacterial Burden During Routine Patient Care
Bischoff, W., MD, Russell, G. MS.
Infection Control & Hospital Epidemiology (2020)
Objective:
determine association between aerosol burden and surface contamination and the impact of HUAIRS on transmission pathways
Method:
in a critical care decision unit; samples taken (for bacterial growth) at head and foot of patient bed and exit doorway
Results:
58% reduction in aerosol burden
51% reduction in surface contamination
Discussion:
Focus was on redistribution of bacteria from airborne to surface contamination in a patient room during routine care
Correlations indicate a direct link between bacteria released in the air and subsequent surface contamination
This finding points to a dual benefit of air purification reducing airborne and indirect contact transmission
Using an air purification system led to significant reductions in both airborne and surface bacteria
