Genotyping of Pseudomonas Aeruginosa Sputum and Stool Isolates from Cystic Fibrosis Patients: Evidence for Intestinal Colonization and Spreading into Toilets
Overview
Public Health
Authors
Affiliations
Three hundred and fifty-eight stool and 131 sputum specimens from 40 cystic fibrosis (CF) patients and 100 toilet sinks were investigated for occurrence of Pseudomonas aeruginosa; 67% (21/31) of the patients with chronic P. aeruginosa lung infections carried the organism repeatedly in the stool but the organism was found only once in the stools of nine uninfected patients. P. aeruginosa stool carriage was correlated to high P. aeruginosa numbers in patients' sputa. Typing of P. aeruginosa with a DNA probe showed identity of sputum and stool strains. Seven patients repeatedly carried additional stool strains, not found in the sputum, suggesting intestinal colonization. No differences were seen in the clinical state of patients with P. aeruginosa-negative stool samples and patients with positive stool samples. Toilets in households of P. aeruginosa-infected CF patients were significantly more often contaminated with P. aeruginosa (42%) than toilets in households of non-infected CF patients (20%; P less than 0.03). The study shows that P. aeruginosa-infected CF patients may harbour the organisms also in the intestinal tract, and may spread the bacteria into toilets.
: An Uncommon Cause of Antibiotic-Associated Diarrhea in an Immunocompetent Ambulatory Adult.
Hoff R, Patel A, Shapiro A Case Rep Gastrointest Med. 2020; 2020:6261748.
PMID: 32934852 PMC: 7484680. DOI: 10.1155/2020/6261748.
Nebuliser hygiene in cystic fibrosis: evidence-based recommendations.
Bell J, Alexander L, Carson J, Crossan A, McCaughan J, Mills H Breathe (Sheff). 2020; 16(2):190328.
PMID: 32684992 PMC: 7341620. DOI: 10.1183/20734735.0328-2019.
Mainz J, Gerber A, Lorenz M, Michl R, Hentschel J, Nader A Case Rep Infect Dis. 2015; 2015:438517.
PMID: 25866686 PMC: 4381717. DOI: 10.1155/2015/438517.
Drainage systems, an occluded source of sanitation related outbreaks.
Blom K Arch Public Health. 2015; 73(1):8.
PMID: 25722855 PMC: 4342212. DOI: 10.1186/s13690-014-0056-6.
Epidemiological studies of nosocomial infections with Pseudomonas aeruginosa using a DNA probe.
Joffe A, Volpel K, Kibsey P, Paranchych W Can J Infect Dis. 2012; 3(6):299-306.
PMID: 22346406 PMC: 3250735. DOI: 10.1155/1992/809648.