Prevalence and Risk Factors Associated with Intestinal Parasitic Infection among Primary School Children in Dera District, Northwest Ethiopia

High prevalence of soil-transmitted helminths and schistosomiasis among primary schoolchildren in Southwest Ethiopia: the need for health strategies alongside mass drug administration

BACKGROUND

Soil-transmitted helminths (STH) and schistosomiasis remain widely prevalent in Ethiopia. The aim of this study was to evaluate the prevalence of STH and schistosomiasis among schoolchildren in Gidi Bench district (Southern Nations, Nationalities, and People's Republic, Southwest Ethiopia) and the association with knowledge and health-related behaviors.

METHODS

A cross-sectional study was conducted. Stool samples, analyzed by the Kato-Katz technique and a knowledge, attitudes and practices questionnaire, were collected.

RESULTS

Out of 611 participants (mean age 12.8±3.1 y), 129 (21.1%) were infected with schistosomiasis and 382 (62.5%) had STH. More than 30% (n=195, 31.9%) were infected with a single intestinal parasite, while 138 (22.6%) and 47 (7.7%) were infected with two or three parasitic infections, respectively. Boys and those who did not participate in school clubs had higher infection rates (p=0.05). Lower parasitic infection was associated with using a latrine when available, washing hands and vegetables and wearing shoes regularly. Higher rates of infection were found among those who reported swimming and washing cloths and utensils in the river regularly.

CONCLUSIONS

Schistosomiasis and STH were highly prevalent among schoolchildren in Gidi Bench district. Infection rates were associated with gender, lack of knowledge on parasitic infections and unhealthy behaviors. Findings from this study may assist in decision making regarding disease prevalence and methods of control alongside mass drug administration.

Prevalence and Associated Risk Factors of Intestinal Parasites among Children under Five Years of Age Attended at Bachuma Primary Hospital, West Omo Zone, Southwest Ethiopia: A Cross-Sectional Study

Background

In regions of the world with low resources, such as Ethiopia, intestinal parasite diseases are still highly prevalent, especially in children. Poor personal and environmental hygiene, as well as unsafe and low-quality drinking water, are the main causes of this. This investigation aimed to determine the frequency of intestinal parasites and risk factors among children under 5 years age at Bachuma Primary Hospital in 2022.

Materials and Methods

: A cross-sectional study was carried out from October 2022 to December 2022 at Bachuma Primary Hospital, West Omo Zone, Southwest Ethiopia. Stool sample was collected from randomly selected children who were ordered to have their stool examined at the hospital laboratory and wet mount was prepared using normal saline to detect the different stage of intestinal parasites microscopically. Moreover, data related to the sociodemographic and associated risk factors was collected using a structured questionnaire. Descriptive statistics were computed to describe the characteristics of the study participants and determine the prevalence of intestinal parasites. Data were entered into Epi-data manager and analysed using statistical packages for social sciences (SPSS) version 25.0, respectively. Bivariate and multivariate logistic regression analyses were performed, with variables with a p value of <0.05 considered statistically significant.

Result

: Infection with at least one intestinal parasite among children was 29.4% (95% CI: 24.5-34.7). Ascaris lumbricoide and Giardia lamblia were responsible for 8% (26/323) and 4% (13/323) of the prevalence of helminth and protozoans, respectively. A multivariate logistic regression analysis revealed that children whose residence was rural had an adjusted odds ratio (AOR) of 5.048 (p=0.001), those who did not wash their hands before meals had an AOR of 7.749 (p=0.001), a child with not trimmed fingernails had an AOR of 2.752 (p=0.010), a child who frequently experienced stomach pain and whose source of water was pond had an AOR of 2.415 (p=0.028) and 3.796 (p=0.040), respectively.

Conclusion

In this study, the prevalence of intestinal parasites recorded was low. Rural residency, absence of child hand washing practice before meal, and not trimming fingernail were among factors significantly associated with intestinal parasite infection.

Epidemiologic Investigation of Intestinal Parasite Infection and Associated Risk Factors among Primary Schoolchildren in the Manzini and Lubombo Provinces, the Kingdom of Eswatini

Although the deworming program has been executed since 2000, the intestinal parasitic infection (IPI) rates among primary schoolchildren (PSC) in the two provinces of the Kingdom of Eswatini investigated in 2010 remained high, reaching 32.2%. In this study, we monitored the IPI status along with the associated risk factors for PSC in two provinces—Manzini and Lubombo. After consent from their parents/guardians, a total of 316 samples collected from PSC with grades 1 to 3 from four primary schools in Manzini and Lubombo were examined by the Merthiolate-Iodine-Formaldehyde (MIF) method. In addition, demographic characteristics and risk factors acquired by questionnaire surveys were included to be statistically analyzed. The overall prevalence was 40.5% (128/316), of which the infection rate in Manzini and Lubombo was 28.8% (19/66) and 58.3% (74/140), respectively. Pathogenic protozoa had the highest infection rate of 20.6% (65/316), including Entamoeba histolytica/dispar (8.5%, 27/316), Giardia duodenalis (14.6%, 46/316), and Blastocystis hominis (9.8%, 31/316). In terms of helminth infection, the infection rate was quite low, 1.6% only, and these five infected cases included four cases of Hymenolepis nana and one case of Enterobius vermicularis infection. Present study showed that 27.8% (88/316) of PSC were infected by more than one pathogenic parasite. Personal hygiene like washing hands before a meal has a significant protection effect (OR = 0.32, 95% CI = 0.14–0.75, $p=0.009$ ). Rain or well water and the type of water supply from which they drank also showed a considerable risk factor (OR = 2.44, 95% CI = 1.25–4.79, $p=0.04$ ). The IPI rate in PSC seems unlikely changed compared to that of the previous survey conducted in 2010, especially when the pathogenic protozoan infection rate remains high. Treatment of infected PSC with appropriate medication to reduce intestinal pathogenic protozoan infection should be seriously considered by Eswatini Health Authority.

Fulminant Hepatitis and Ulcerative Colitis: Case Report of Ethiopian Child with Schistosomiasis and Amebiasis Co-Infection

Background

Schistosomiasis is a neglected tropical disease (NTD) that affects around 200 million people worldwide, the majority of whom are children aged 5 to 15 years. It is one of the most significant public health problems in tropical and subtropical regions. Entamoeba histolytica infection is common in areas where schistosomiasis is endemic because Schistosoma mansoni infection can reduce the host's immune response, resulting in increased morbidity.

Case Presentation

This is the story of a 12-year-old male adolescent from the Guji zone of the Oromia regional state of Ethiopia who presented to Hawassa University Comprehensive Specialized Hospital (HUCSH) complaining of bloody diarrhea of 1 week associated with vomiting of ingested matter of 2 weeks. He also had history of fever, chills, rigors, arthralgia, and weight loss during a 2 weeks period. Further questioning revealed that he had previously swum in a pond and had a self-limited itchy skin condition. The family said that similar cases had occurred in their town that resolved with medications provided at a local health center.

Conclusion

Schistosomiasis and amebiasis are major public health issues, especially in impoverished areas. Schistosomiasis presents differently clinically depending on the phase and clinical form in which it manifests, making diagnosis and management challenging. As a result, it necessitates an integrated collaboration involving clinicians, pathologists, and public health professionals. We describe ulcerative colitis (UC) ascribed to schistosomiasis and amoebiasis coinfection, and fulminant hepatitis due to schistosomiasis. As there was no report of liver abscess on sonographic scanning, hepatitis may not be due to coinfection. This case will be an alert to clinicians and public health personnel who are striving for the ultimate eradication of schistosomiasis and also teaches us that treating co-infections of both is beyond just giving praziquantel and antiamebics.