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Title: Salmonella in the tropical household environment--Everyday, everywhere.
Authors: Williams, Shellee
Patel, Mahomed
Markey, Peter
Muller, Rosanne
Benedict, Suresh
Ross, Ian
Heuzenroeder, Michael
Davos, Dianne
Cameron, Scott
Krause, Vicki
Citation: The Journal of infection 2015-12; 71(6): 642-8
Abstract: To determine the prevalence of Salmonella in the environment of case and control houses, and compare serovars isolated from cases and their houses. From 2005 to 2008, we tested samples from houses of 0-4 year old cases and community controls in Darwin and Palmerston for Salmonella. Case isolates were compared with environmental isolates. S. Ball and S. Urbana isolates were compared using Multiple Amplification of Phage Locus Typing (MAPLT) and Multiple-Locus Variable number of tandem repeat Analysis (MLVA). Salmonella were found in 47/65 (72%) case houses and 18/29 (62%) control houses; these proportions were not significantly different. In 21/47 (45%) houses, case and environmental isolates (from animal faeces, soil and vacuums) were indistinguishable. Multiple serovars were isolated from 20 (31%) case and 6 (21%) control houses. All but one environmental isolate are known human pathogens in the Northern Territory (NT). Each of the four pairs of S. Ball and S. Urbana were indistinguishable. Animal faeces were the most likely source of salmonellosis in cases. The similar prevalence of house isolates suggests that Salmonella is ubiquitous in this environment. The distinction of S. Ball and S. Urbana subtypes enabled linkage of human illness to environmental exposure. Environmental contamination with Salmonella is an important source of sporadic infection in children in the tropics.
Click to open PubMed article: https://www.ezpdhcs.nt.gov.au/login?url=https://www.ncbi.nlm.nih.gov/pubmed/26416474
Click to open Pubmed Article: https://www.ezpdhcs.nt.gov.au/login?url=https://www.ncbi.nlm.nih.gov/pubmed/26416474
Journal title: The Journal of infection
Publication Date: 2015-12
Type: Journal Article
Research Support, Non-U.S. Gov't
URI: https://hdl.handle.net/10137/5434
DOI: 10.1016/j.jinf.2015.09.011
Appears in Collections:(a) NT Health Research Collection

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