Occurence of Culturable Vibrio cholerae from Lake Victoria, and Rift Valley Lakes Albert and George, Uganda
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Date
2012
Journal Title
Journal ISSN
Volume Title
Publisher
Lakes & Reservoirs: Research & Management
Abstract
Vibrio cholerae, a bacterium that causes cholera, poses a human health risk when consumed via untreated or contaminated
water. Monthly investigations into the presence of V. cholerae from Lakes Albert, George and Victoria were conducted,
with the goal being to examine the relationship between the occurrences of V. cholerae with various water quality
parameters at fish landing sites in major water bodies in Uganda. The pH, temperature and electrical conductivity were
measured at three fishing sites in each of the three study lakes; namely Gabba in Lake Victoria, Butiaba in Lake Albert
and Kayanzi in Lake George. The pH values varied from 7.76 to 9.36 at Butiaba, 8.68 to 9.85 at Kayanzi and 6.6 to 9.88 at
Ggaba. The temperature ranged from 17.9 to 32.3 C at Butiaba, 22.5 to 29 C at Kayanzi and 18.2 to 30.5 C at Ggaba.
The electrical conductivity ranged from 129.2 to 984 lS cm)1 at Butiaba, 658 to 1090 lS cm)1 at Kayanzi and 119 to
218 lS cm)1 at Ggaba, for Lakes Albert, George and Victoria, respectively. Enrichment techniques were used to detect
culturable V. cholerae on TCBS culture media. Seventy-five (75%) of the samples (n = 90) were positive for V. cholera.
The occurrence of V. cholerae was positively associated with water quality parameters over the 10-month period of study.
Vibrio cholerae was more frequently detected during the dry season (warmer) than during the wet season. These study
results suggest the investigated study lakes are natural reservoirs for V. cholerae.
Description
Keywords
George and Victoria, Rift valley, Lakes Albert, Uganda, Vibrio cholerae, Waterborne diseases
Citation
Kaddumukasa, M., Nsubuga, D., & Muyodi, F. J. (2012). Occurence of culturable Vibrio cholerae from lake Victoria, and Rift valley lakes Albert and George, Uganda. Lakes & Reservoirs: Research & Management, 17(4), 291-299. Doi: 10.1111/lre.12009