Drinking water from dug wells in rural ghana--salmonella contamination, environmental factors, and genotypes.

Autor: Dekker DM; Research Group Infectious Disease Epidemiology, Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Straße 74, Hamburg 20359, Germany. dekker@bnitm.de., Krumkamp R; Research Group Infectious Disease Epidemiology, Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Straße 74, Hamburg 20359, Germany. krumkamp@bnitm.de.; German Centre for Infection Research (DZIF), Hamburg-Borstel-Lübeck, Bernhard-Nocht-Straße 74, Hamburg 20359, Germany. krumkamp@bnitm.de., Sarpong N; Kumasi Centre for Collaborative Research, Kumasi, Ghana. nimakosarpong@yahoo.com., Frickmann H; Department of Tropical Medicine, German Armed Forces Hospital of Hamburg, Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Straße 74, Hamburg 20359, Germany. frickmann@bnitm.de.; Institute for Medical Microbiology, Virology and Hygiene, University Hospital Rostock, Schillingallee 70, Rostock 18057, Germany. frickmann@bnitm.de., Boahen KG; Kumasi Centre for Collaborative Research, Kumasi, Ghana. gyaukennedy@yahoo.com., Frimpong M; Kumasi Centre for Collaborative Research, Kumasi, Ghana. mfrimpong28@gmail.com., Asare R; Kumasi Centre for Collaborative Research, Kumasi, Ghana. browny2gh@yahoo.com., Larbi R; Kumasi Centre for Collaborative Research, Kumasi, Ghana. kerl18mcc@hotmail.com., Hagen RM; Department of Tropical Medicine, German Armed Forces Hospital of Hamburg, Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Straße 74, Hamburg 20359, Germany. hagen@bnitm.de., Poppert S; Justus-Liebig-University Gießen, Rudolf-Buchheimstraße 6, Gießen 35392, Germany. sven@poppert.eu., Rabsch W; Robert Koch Institute, FG11, National Reference Centre for Salmonella and other Bacterial Enteric Pathogens, Burgstraße 37, Wernigerode 38855, Germany. rabschw@rki.de., Marks F; International Vaccine Institute, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, South Korea. fmarks@ivi.int., Adu-Sarkodie Y; Kwame Nkrumah University of Science and Technology (KNUST), Accra Road, Kumasi, Ghana. yasax@hotmail.co.uk., May J; Research Group Infectious Disease Epidemiology, Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Straße 74, Hamburg 20359, Germany. may@bnitm.de.; German Centre for Infection Research (DZIF), Hamburg-Borstel-Lübeck, Bernhard-Nocht-Straße 74, Hamburg 20359, Germany. may@bnitm.de.
Jazyk: angličtina
Zdroj: International journal of environmental research and public health [Int J Environ Res Public Health] 2015 Mar 27; Vol. 12 (4), pp. 3535-46. Date of Electronic Publication: 2015 Mar 27.
DOI: 10.3390/ijerph120403535
Abstrakt: Salmonellosis is an important but neglected disease in sub-Saharan Africa. Food or fecal-oral associated transmissions are the primary cause of infections, while the role of waterborne transmission is unclear. Samples were collected from different dug wells in a rural area of Ghana and analyzed for contamination with bacteria, and with Salmonella in particular. In addition, temporal dynamics and riks factors for contamination were investigated in 16 wells. For all Salmonella isolates antibiotic susceptibility testing was performed, serovars were determined and strains from the same well with the same serovar were genotyped. The frequency of well water contamination with Gram-negative rod-shaped bacteria was 99.2% (n = 395). Out of 398 samples, 26 (6.5%) tested positive for Salmonella spp. The serovar distribution was diverse including strains not commonly isolated from clinical samples. Resistance to locally applied antibiotics or resistance to fluoroquinolones was not seen in the Salmonella isolates. The risk of Salmonella contamination was lower in wells surrounded by a frame and higher during the rainy season. The study confirms the overall poor microbiological quality of well water in a resource-poor area of Ghana. Well contamination with Salmonella poses a potential threat of infection, thus highlighting the important role of drinking water safety in infectious disease control.
Databáze: MEDLINE
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