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Updated: Jun 20, 2026

Automated Hospital Room Disinfection Utilizing a Novel Aerosolized Hydrogen Peroxide Microdroplet Disbursing Technology

Automated Hospital Room Disinfection Utilizing a Novel Aerosolized Hydrogen Peroxide Microdroplet Disbursing Technology

Published on: February 24, 2026

Reproducibility of the surveillance effect to decrease nosocomial infection rates.

P Gastmeier¹, F Schwab, D Sohr

¹Institute of Hygiene and Environmental Medicine, Charité-University Medicine Berlin, Germany. petra.gastmeier@charite.de

Infection Control and Hospital Epidemiology

|September 2, 2009

Summary

This summary is machine-generated.

Participation in a nosocomial infection surveillance system consistently reduces healthcare-associated infections like VAP and CVC-associated BSI. This positive effect on infection control is reproducible across different time periods, demonstrating the system

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Last Updated: Jun 20, 2026

Automated Hospital Room Disinfection Utilizing a Novel Aerosolized Hydrogen Peroxide Microdroplet Disbursing Technology

Automated Hospital Room Disinfection Utilizing a Novel Aerosolized Hydrogen Peroxide Microdroplet Disbursing Technology

Published on: February 24, 2026

Area of Science:

Healthcare epidemiology
Infection control and prevention
Public health surveillance

Background:

Nosocomial infections, including central venous catheter (CVC)-associated bloodstream infections (BSI), ventilator-associated pneumonia (VAP), and surgical site infections (SSI), pose significant risks in healthcare settings.
Surveillance systems are crucial for monitoring and reducing these infections, but their long-term reproducibility and independence from temporal confounding factors require investigation.

Purpose of the Study:

To assess the reproducibility of infection reduction effects from a national nosocomial infection surveillance system.
To determine if the observed reductions in CVC-associated BSI, VAP, and SSI are independent of specific time periods and potential confounding factors.

Main Methods:

Analysis of German national nosocomial infection surveillance system data from January 1997 to June 2008.
Calculation of monthly infection rates for 36 months following different starting periods for CVC-associated BSI, VAP, and SSI.
Comparison of infection rates between the first and third surveillance years using relative risks to evaluate the surveillance effect.

Main Results:

A significant reduction in VAP was observed across investigated periods (overall RR, 0.80).
Significant reductions in CVC-associated BSI were found in 2 of 3 periods (overall RR, 0.83).
Significant reductions in SSI were noted for knee prosthesis insertion (2 periods) and cesarean delivery (3 periods), but not for endoscopically performed cholecystectomy.

Conclusions:

The surveillance effect, characterized by reduced nosocomial infection rates, is consistently observed.
This reduction is evident between the first and third years of participation in the surveillance system.
The positive impact of the surveillance system on infection rates is reproducible and independent of the calendar year of implementation.