Intestinal schistosomiasis in an apparently healthy rural population in Bayelsa State, Nigeria

* 1Odoya, E. M., 2Edosomwa, E. U., 1Iribhogbe, O. I.,2Damina, A. A., and 3Asojo, O. A.  

 1Ambrose Alli University, Ekpoma, Nigeria

2University of Benin, Nigeria

3National School of Tropical Medicine, Baylor College of Medicine, Houston, Texas, USA                                  

*Correspondence to:


 Background: Schistosomiasis is endemic in Nigeria and three species; Schistosoma haematobium, Schistosoma mansoni, and Schistosoma intercalatum have been reported in Niger Delta, Nigeria. This study aimed to determine the prevalence of schistosomiasis in rural communities of Bayelsa State, Nigeria.

Methodology: Four rural homogeneous communities; Otuegala, Immiringi, Otuesega, and Ibelebiri in Ogbia Local Government Area of Bayelsa State, Nigeria, were randomly selected for the study. A structured questionnaire was administered to each participant in their native language and used to collect participant’s biodata and swimming history. Stool samples collected from all participants were examined qualitatively by wet preparation and after formolethol concentration. Data were analyzed using SPSS version 20.0 software and results presented in proportion and tables. Continue reading “Intestinal schistosomiasis in an apparently healthy rural population in Bayelsa State, Nigeria”

Screening for Schistosoma haematobium infection in a rural cohort of pregnant women in Nigeria

O Ojurongbe, OA Adeyeba, AO Olowu, AO Olowe, OO Opaleye, BE Egbewale



Studies were conducted to investigate the occurrence of Schistosoma haematobium infection among 37 pregnant Nigerian women in llie, Osun state, Nigeria and to determine the effects on haemoglobin concentration and clinical symptoms. Out of the 37 pregnant women seen over a period of nine months, 14 (37%) had urinary schistosomiasis, with a mean egg count of 82.5 eggs/10 mls of urine. The mean haemoglobin values in women with schistosomiasis mothers were lower than in women negative for the parasite but the differences were not stastically significant (P>0.05). Abdominal pain was the predominant complaint among the women seen in with 71% of the infected women while other complaints were dizziness, fever and headache. This study shows that schistosomiasis is prevalent among pregnant women in rural area and could contribute to anaemia and abdominal pain commonly seen in pregnant women in our environment.

Keywords: schistosomiasis, pregnant women, abdominal pain, haemoglobin values, Nigeria

Leucocyte Phagocytosis In Children With Urinary Schistosomiasis And Asymptomatic Malaria Parasitemia

OG Arinola



In the participants considered for this study, leucocyte migration, neutrophil candidacidal activity and ability to generate reactive oxygen were determined as percentage migration index (%M. I), candidacidal phagocytic index (%C.I) and bacterial stimulated nitroblue tetrazolium (NBT) dye reduction index (%NBT) respectively. Also, malaria density was counted from thick blood film of glass slide stained with Giemsa stain. The participants were 54 school children having urinary schistosomiasis without malaria parasites (USS-M), 18 children with both urinary schistosomiasis and malaria parasites (USS+M), 46 children with malaria parasites without urinary schistosomiasis (M-USS) and 29 controls. The mean % M.I was least while %NBT index was highest in USS+M subjects but M-USS subjects had least %C.I. Malaria density was higher in M-USS subjects than USS+M subjects. The results of this study showed that low prevalence and reduced severity of malaria parasites in children with urinary schistosomiasis may be due to adequate production of leucocyte migration inhibitory factor (LMIF) and reactive oxygen species.
Key words: Leucocyte phagocytosis, malaria, schistosomiasis, Nigeria

Afr. J. Clin. Exper. Microbiol. 2005; 6(2): 81-86


O Ariyo, LK Olofintoye, RA Adeleke, O Famurewa



The prevalence of Schistosoma haematobium infection was investigated among primary school pupils in Ekiti State by questionnaire survey in 601 schools between 1997 and 1998. A total of 9,551 (24.4%) were positive by the survey. 3483 (22.4%) of the girls and 6,069 (25.7%) of the boys were infected. The prevalence of this infection between girls and boys shows a significant difference (x215 = 59.5; p<0.05). Ekiti South West local government had the highest prevalence of S. haematobium infection of 69.0% while Ikole local government had the lowest prevalence of infection of 2.0%. Out of 1,049 pupils with clinical and laboratory examination, 280 (50.9%) of the 550 boys and 184 (36.9%) of the 499 girls were infected. Chi-square analysis shows a significant difference of S. haematobium infection between the girls and boys (X211 = 86.2; p<0.05). Chi square analysis also showed that questionnaire survey could be used to predict the laboratory epidemiological data (X21= 3.84; p<0.05).

Key Words: Schistosomiasis, Epidemiology, Infection, Bulinus globosus

African Journal Of Clinical And Experimental Microbiology Jan 2004 Vol.5 No.1 20-29

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