Characterization of Salmonella Species from Water Bodies in Dar-Es-Salaam City, Tanzania
Loading...
Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Water-borne diseases are the most common cause of illness and death among the poor population from developing countries. The
majority of the people are inadequately aware that aquatic environment is a major source of salmonellosis. Dar es Salaam city is among the cities
with most of its population live in squatter. Typhoid fever ranks second with 14.3% of all notifiable disease cases in the city. The city experience
water scarcity which forces water wells and rivers to become the main sources of water for domestic use and livestock. This study therefore,
characterized Salmonella strains from different water bodies of city as possible sources for enteric diseases endemicity. Methods: The Salmonella
Chromogenic Agar (SC Agar) and Kligler Iron Agar (KIA) media were used for isolation and enumeration of the strains. The inoculated cultures
were incubated at 370
C for 24 hours. Salmonella colonies were confirmed by magenta colorations and hydrogen sulfide production on SC Agar and
KIA Agar, respectively. The Analytical Profile Index 20 Enterobacteriaceae kit (API 20E kit) was used to identify Salmonella species. Results: Based
on the API 20E kit, the identified Salmonella species from different water bodies were Salmonella ser. paratyphi A (96.9%), Salmonella cholelaesuis
spp choleraesuis (99.5%) and Salmonella typhi (99.9%). Conclusion: This study shows that shallow wells and rivers which are mainly used by the
city dwellers were highly contaminated with Salmonella and were more contaminated than deep wells and marine water bodies. This warrants
further investigation on the disease mapping in the urban and peri-urban areas.
Description
Keywords
Salmonella typhi, Salmonellosis, Water pollutants, Wells, River pollution
Citation
Characterization of Salmonella Species from Water Bodies in Dar-Es-Salaam City, Tanzania