Evidence map›Paper›PMID 26969696›Full record

ArticleApplied and environmental microbiology2016

Control of Legionella Contamination and Risk of Corrosion in Hospital Water Networks following Various Disinfection Procedures.

Isabella Marchesi, Greta Ferranti, Antonella Mansi, Anna M Marcelloni, Anna R Proietto, Navneet Saini, Paola Borella, Annalisa Bargellini

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Applied and environmental microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.8field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 39 citations in OpenAlex.

  1. Ozonation Eliminates Viable but Not CulturablePathogens (Basel, Switzerland) · 2026
    Article
  2. Review
  3. Article
  4. Microorganisms · 2023
    Article
  5. Review
  6. Article
  7. Legionellosis Caused by Non-Microorganisms · 2021
    Review
  8. Article
  9. Safety and Effectiveness of Monochloramine Treatment for Disinfecting Hospital Water Networks.International journal of environmental research and public health · 2020
    Article
  10. Article
  11. Article
  12. The Impact of Storms onFrontiers in microbiology · 2020
    Article
  13. Advances inPathogens (Basel, Switzerland) · 2019
    Article
  14. Article
  15. Article
  16. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Isabella MarchesiUniversity of Modena and Reggio Emilia, Department of Biomedical, Metabolic and Neurosciences, Section of Public Health, Modena, Italy isabella.marchesi@unimore.it.
Greta FerrantiUniversity of Modena and Reggio Emilia, Department of Biomedical, Metabolic and Neurosciences, Section of Public Health, Modena, Italy.
Antonella MansiINAIL Research Area, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Monte Porzio Catone, Rome, Italy.
Anna M MarcelloniINAIL Research Area, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Monte Porzio Catone, Rome, Italy.
Anna R ProiettoINAIL Research Area, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Monte Porzio Catone, Rome, Italy.
Navneet SainiUniversity of Modena and Reggio Emilia, Department of Biomedical, Metabolic and Neurosciences, Section of Public Health, Modena, Italy.
Paola BorellaUniversity of Modena and Reggio Emilia, Department of Biomedical, Metabolic and Neurosciences, Section of Public Health, Modena, Italy.
Annalisa BargelliniUniversity of Modena and Reggio Emilia, Department of Biomedical, Metabolic and Neurosciences, Section of Public Health, Modena, Italy.
University of Modena and Reggio Emilia · ITIstituto Nazionale per l'Assicurazione Contro gli Infortuni sul Lavoro · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Physical and chemical disinfection methods have been proposed with the aim of controlling Legionella water contamination. To date, the most effective procedures for reducing bacterial contamination have not yet been defined. The aim of this study was to assess the long-term effectiveness of various disinfection procedures in order to reduce both culturable and nonculturable (NC) legionellae in different hospital water networks treated with heat, chlorine dioxide, monochloramine, and hydrogen peroxide. The temperature levels and biocide concentrations that proved to give reliable results were analyzed. In order to study the possible effects on the water pipes, we verified the extent of corrosion on experimental coupons after applying each method for 6 months. The percentage of positive points was at its lowest after treatment with monochloramine, followed by chlorine dioxide, hydrogen peroxide, and hyperthermia. Different selections of Legionella spp. were observed, as networks treated with chlorine-based disinfectants were contaminated mainly by Legionella pneumophila serogroup 1, hyperthermia was associated with serogroups 2 to 14, and hydrogen peroxide treatment was associated mainly with non-pneumophila species. NC cells were detected only in heat-treated waters, and also when the temperature was approximately 60°C. The corrosion rates of the coupons were within a satisfactory limit for water networks, but the morphologies differed. We confirm here that chemical disinfection controls Legionella colonization more effectively than hyperthermia does. Monochloramine was the most effective treatment, while hydrogen peroxide may be a promising alternative to chlorine-based disinfectants due to its ability to select for other, less virulent or nonpathogenic species.

Indexed as

Hot TemperatureWater MicrobiologyCorrosionDisinfectantsDisinfectionHospitalsLegionella pneumophilaDisinfectants

Identifiers

PMID26969696
PMCPMC4959080
OpenAlexW2346191707

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.