Williams S; Patel M; Markey P; Muller R; Benedict S; Ross I; Heuzenroeder M; Davos D; Cameron S; Krause VL

Author(s)

Williams S

Patel M

Markey P

Muller R

Benedict S

Ross I

Heuzenroeder M

Davos D

Cameron S

Krause VL

Publication Date

2015-12

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.

Citation

The Journal of infection 2015-12; 71(6): 642-8

Pubmed ID

https://pubmed.ncbi.nlm.nih.gov/26416474/?otool=iaurydwlib

Link

https://hdl.handle.net/10137/5434

Subject

Animals

Bacterial typing techniques/methods

Children

Faeces

Infant

Salmonella

Salmonella infections

Serogroup

Soil

Vacuum cleaner

MESH subject

Animals

Australia

Bacterial Typing Techniques

Bacteriophage Typing

Case-Control Studies

Child

Electrophoresis, Gel, Pulsed-Field

Family Characteristics

Feces

Humans

Prevalence

Salmonella

Salmonella Infections

Serogroup

Soil Microbiology

Tropical Climate

Title

Salmonella in the tropical household environment--Everyday, everywhere.

Type of document

Journal Article

Entity Type

Publication

Author(s)	Williams S Patel M Markey P Muller R Benedict S Ross I Heuzenroeder M Davos D Cameron S Krause VL
Publication Date	2015-12
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.
Citation	The Journal of infection 2015-12; 71(6): 642-8
Pubmed ID	https://pubmed.ncbi.nlm.nih.gov/26416474/?otool=iaurydwlib
Link	https://hdl.handle.net/10137/5434
Subject	Animals Bacterial typing techniques/methods Children Faeces Infant Salmonella Salmonella infections Serogroup Soil Vacuum cleaner
MESH subject	Animals Australia Bacterial Typing Techniques Bacteriophage Typing Case-Control Studies Child Electrophoresis, Gel, Pulsed-Field Family Characteristics Feces Humans Prevalence Salmonella Salmonella Infections Serogroup Soil Microbiology Tropical Climate
Title	Salmonella in the tropical household environment--Everyday, everywhere.
Type of document	Journal Article
Entity Type	Publication

Salmonella in the tropical household environment--Everyday, everywhere.

Files: