Sokoine University of Agriculture

Characterization of Salmonella spp. from wastewater used for food production in Morogoro, Tanzania

Show simple item record Mdegela, R. H. Kusiluka, L. J. M. Forslund, A. Dalsgaard, A. 2018-06-13T09:12:27Z 2018-06-13T09:12:27Z 2017
dc.description World J Microbiol Biotechnol (2017) 33:42 en_US
dc.description.abstract Wastewater use for crop irrigation and aquaculture is commonly practiced by communities situated close to wastewater treatment ponds. The objective of this study was to characterize Salmonella spp. and their antimicrobial susceptibility patterns among isolates from wastewater and Tilapia fish. A total of 123 Salmonella spp. isolates were isolated from 52 water and 21 fish intestinal samples. Genotyping of Salmonella spp. isolates was done by Pulsed-field Gel Electrophoresis (PFGE). Antimicrobial susceptibility testing was done by the minimal inhibitory concentration (MIC) technique. A total of 123 Salmonella spp. isolates represented 13 different serovars and 22 PFGE groups. Salmonella serovars showed resistance to 8 out of 14 antimicrobials; sulfamethaxazole (94%), streptomycin (61%), tetracycline (22%), ciprofloxacin and nalidixic acid (17%), trimethoprim (11%); gentamycin and chloramphenicol (6%). Salmonella Kentucky, S. Chandans, S. Durban and S. Kiambu showed multiple antimicrobial resistance to 7, 6 and 3 antimicrobials, respectively. This study has demonstrated that wastewater at the study sites is contaminated with Salmonella spp. which are resistant to common antimicrobials used for treatment of diseases in humans. Wastewater may, therefore, contaminate pristine surface water bodies and foodstuffs including fish and irrigated crops as well as food handlers. en_US
dc.language.iso en en_US
dc.publisher Springer Science+Business Media Dordrecht en_US
dc.subject Antimicrobial resistance en_US
dc.subject Fish intestinal en_US
dc.subject Salmonella serovars en_US
dc.subject Tilapia en_US
dc.title Characterization of Salmonella spp. from wastewater used for food production in Morogoro, Tanzania en_US
dc.type Article en_US

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