Studies on the Ecological Factors of Schistosoma Intermediate Host in Relation to the Transmission of Urinary Schistosomiasis in Owena Reservoir Area

Aims: To evaluate the studies on the ecological factors of schistosoma intermediate host in relation to
the transmission of urinary schistosomiasis in owena reservoir area, Ondo State, South West, Nigeria
Study Design: Laboratory work, field trips, questionnaire were used to collect data for the study.
Place and Duration of Study: Owena reservoir area, Ondo State, South West Nigeria, twenty-four
(August 2013 – July 2015)
Methodology: During the twenty-four (August 2013 – July 2015) study eight stations (sites) of diverse
ecological characteristics were selected along the Owena Reservoir and monitored for snails species
diversity, distribution and infection patterns, physic-chemical properties of H2O and macrophyte types
and coverage in relation to the transmission of urinary schistosomiasis.
Results: The results of the study showed that all the snail species correlated positively with alkalinity
conductive, negatively with air temperature. Bulinus globosus was very highly correlated positively
(P<0.05) with Ludwiga erecta, Ludwiga decurrens, Commelina afircna and Berberis calamus but
correlated significantly negatively (p<0.001) with panicum maximus, Ervatomia hirta, Bulinus
truncatus
was very highly correlated positively (p<0.005) with Aspillia Africana, Lugwiga decurrens,
Emilia occinina, Crosus sativue
but correlated significantly negatively (p<0.001) with Ludwiga erecta,
Panicum maximus
and Commelina Africana. Out of the eight sites studied, site 4 in Kajola community
had the highest 53(8.5%) infection rate that is out of the 624 Bulinus globosus collected from this site
4, only 53 were infected, while Embankment/Dam (site 8) had the least 2 (0.6%) of 317 collected.
However, the overall infection rate among Bulinus globosus, the intermediate snail host species for
Schistosoma haematobium was 136 (3.2%) out of 4258 collected. From the above findings, site 4 in
Kajola community is the major transmission site in the study area.

Author (s) Details

Dr. B. J. Peletu
Department of Health Sciences, College of Allied Health Sciences (CAHS), Legacy University, The Gambia.

Associate Professor L. T. Abdulsalami
Department of Library and Information Science, College of Education and Social Sciences, Legacy University, The Gambia.

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