Oct 5 – 7, 2026
Hotel Berlin, Berlin
Europe/Berlin timezone
>> Safe the date for the next symposium: September 29 – October 1, 2027 <<

Évaluation of the effets of wastewater on the prolifération of waterborne bacterial diseases in the Olezoa stream.

Oct 5, 2026, 7:37 PM
1m
Area C

Area C

Poster presentation Public Health Snacks & Poster Viewing I

Speaker

Mr Raphaël Dieudonné Laurent FOUDA NGONO BELIBI (University of Yaounde 1)

Description

A study aimed at evaluating the impact of black water in the aquatic environment and on the proliferation of water-borne diseases was carried out in the Olézoa stream, during the period from April to September 2020. In this context, One Health approach emerges as a relevant conceptual framework for understanding the resurgence of these disease and the interactions between the different compartments (aquatic environment and human population) in order to assess the overall infectious risk.The survey carried out among the local population showed that the use of water ressources of Olezoa watercourse is responsible in humans for amoebic and bacillary dysentery, typhoid and paratyphoid fevers requiring expensive treatment, ranging from 7,500 to 18,500 FCFA per month.These waters harbor BHAMs; Fecal Coliforms; Fecal Streptococci whose abundances have varied between 6 to 4.56; 0 to 3.42 and from 0 to 4.39 units log CFU/100 ml respectively; the monthly abundances of these bacteria undergo spatio-temporal fluctuations. In addition, they harbor pathogenic bacteria such as V. Cholerae and Salmonella Typhi among others whose abundances vary between 0 to 4.03 and from 0 to 2.88 units log CFU / 100ml respectively.
The black water discharged without prior treatment increases the proliferation of water-borne diseases and makes the rivers unfit for all consumption.

Keywords

Black water, water-borne.diseases, abiotic variables, stream Olezoa, One Health.

Registration ID OHS26-15
Professional Status of the Speaker PhD Student
Junior Scientist Status Yes, I am a Junior Scientist.

Author

Mr Raphaël Dieudonné Laurent FOUDA NGONO BELIBI (University of Yaounde 1)

Co-author

Dr Serge ZEBAZE (University of Yaoundé 1)

Presentation materials

There are no materials yet.

External references

Peer reviewing

Paper