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Updated: Jan 10, 2026

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis

Published on: August 12, 2020

Microbiological Analysis of Neonatal Incubators.

Nirla Gomes Guedes¹, Eva Anny Wélly de Souza Brito, Débora Castelo Branco de Souza Collares Maia

¹Author Affiliations: Nursing Department, Federal University of Ceara, Ceara, Brazil (Drs Guedes, Lopes, Lima, Silva, and Silva, and MSc Brito); and Department of Medical Microbiology, Federal University of Ceará, Ceara, Brazil (Dr Maia and MSc Gomes).

Advances in Neonatal Care : Official Journal of the National Association of Neonatal Nurses

|November 21, 2025

Summary

Neonatal incubators show significant bacterial contamination, especially on portholes, highlighting the need for strict cleaning protocols to prevent infections in newborn intensive care units.

Keywords:

infant incubators infections microbiology neonatology nursing

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Area of Science:

Neonatal care
Infection control
Microbiology

Background:

Improper handling and disinfection of neonatal incubators lead to infections and adverse events.
These infections contribute significantly to morbidity and mortality in neonatal units.
Maintaining incubator hygiene is critical for infant safety.

Purpose of the Study:

To perform a microbiological analysis of neonatal incubators.
To assess bacterial contamination levels over time.
To evaluate contamination based on disinfection intervals.

Main Methods:

Cross-sectional observational study of 56 neonatal incubators.
Incubators grouped by days since last disinfection (0-15 days).
Microbiological samples collected from portholes and internal corners using swabs.

Main Results:

High bacterial growth detected in 87.35% of porthole samples and 82.1% of internal corner samples.
Portholes exhibited significantly higher bacterial growth than internal corners.
Coagulase-negative Staphylococcus species were the most common bacteria identified.

Conclusions:

Findings emphasize the necessity of rigorous cleaning protocols for neonatal incubators.
Strict hygiene practices are crucial to minimize microbial proliferation and infection risk.
Results can guide clinical strategies for enhanced incubator disinfection and patient safety.