The impact of health education on the prevalence of faecal-orally transmitted parasitic infections among school children in a rural community in Cameroon

Background: Faecal-orally transmitted parasites are those parasites which are spread through faecal contamination of food and drinks. Infections with these parasites are among the most common in the world being responsible for considerable morbidity and mortality, especially in children. This study was carried out to determine the impact of health education on the prevalence of faecal-orally transmitted parasitic infections among primary school children in a typical African rural community. Methods: An intervention study was conducted in two villages in the South-West Region of Cameroon. A total of 370 volunteer pupils aged between 5-15 years were enrolled in the study out of which 208 were from Kake II experimental arm) and 162 from Barombi-Kang (control arm). The research was conducted in two phases. In phase 1, stool samples were collected from all participants and analyzed using the formol-ether concentration technique and health education was given to the pupils in the experimental village but not in the control village. Phase 2 was conducted six months later during which only stool samples were collected and analyzed from both villages. Results: Before health education intervention (phase1) faecal-orally transmitted parasites were present in 106 (50.9%) stool specimens collected in Kake II and in 84 (51.5%) of those collected in Barombi-kang. The difference in prevalence between these two villages was not significant (P>0.05). After health education intervention (phase2), 56 (26.9%) stool specimens were positive for faecal-oral parasite in Kake II and 92 (54.7%) in Barombi-kang, and the difference in prevalence between these two villages was statistically significant (P0.05). The change in the prevalence of infection was significant in Kake II (50.9% vs. 26.9%, P0.05). Hence, health education applied in the experimental village was responsible for the drop in the prevalence observed, especially among pupils infected with Ascaris lumbricoides (24.9% vs. 3.4%, P=0.004) Conclusion: Health education through the framework of schools can be used as a strategy for the control of faecal-orally transmitted parasitic infections among children in African rural communities.Key words: Intestinal parasites, parasitic infections, health education, Cameroo

The relationship between perception and prevalence of faecal-orally transmitted parasitic infections among school children’s in a rural community in Cameroon

Background: Faecal-orally transmitted parasites are those which are spread through faecal contamination of food and drinks. Infections with these parasites are responsible for high morbidity and mortality, especially in children in developing countries.Objective: This study was carried out to determine school children’s perception of faecal-orally transmitted parasitic infections and the relationship between that perception and the prevalence of the infections.Methods: Data were collected through questionnaires and laboratory analysis of stool samples. The study was conducted in two phases. In phase 1 questionnaires were administered to determine children’s knowledge on the cause, risk behaviours and prevention of the faecal-orally parasite infections. Stool specimens were analyzed using the formol-ether concentration technique. Health education was utilized in the experimental village, but not the control. Phase 2 was conducted six months later during which questionnaires were distributed and stool samples analyzed from both villages.Results: A total of 370 children were enrolled in this intervention study, out of which 208 were from Kake II (experimental arm) and 162 from Barombi-kang (control arm). At Kake II there was a significant increase in awareness in relation to the source of infection (9.5% vs. 62.5%, P< 0.001), risk behaviour (12.4% vs. 83.7, P<0.001) and prevention (17.9% vs. 84.8%, P<0.001) between the first and second phase of the study, followed by a significant change in the prevalence of Ascaris lumbricoides (24.9% vs. 3.4%, P<0.001), Entamoeba coli (12.9% vs. 6.5%, P<0.001), Trichuris trichiura (22.4% vs. 12.5%, P=0.004) and Entamoeba histolytica (6.0% vs. 1.9%, P=0.035). In Barombi-kang the change in the awareness was not significant (P>0.1) and there was no significant change in the prevalence of any of the faecal-orally transmitted parasites detected. The relationship between the perception and the prevalence of feacal orally transmitted parasitic infections showed a strong negative correlation (r dispersed between -0.97 and -99)Conclusion: Health education applied in the experimental village was responsible for the changed perception of infection by children and consequently for the reduction of infestation rate. Good perception of the infection was inversely proportional to its prevalence. Therefore, health education through the framework of school proved to be an effective control method for faecalorally parasite infections. We recommend this inexpensive method to be adopted as a national policy in developing countries, especially in rural communities.Key Words: Perception and prevalence, Faecal-orally transmitted parasitic infections, School children, Cameroo