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Risk factor for STHs

Noé Patrick M'bondoukwé, Eric Kendjo, Denise Patricia Mawili-Mboumba, Jeanne Vanessa Koumba Lengongo, Christelle Offouga Mbouoronde, Dieudonné Nkoghe, Fousseyni Touré, Marielle Karine Bouyou-Akotet
BACKGROUND: Malaria, filariasis, and intestinal parasitic infections (IPIs) are common and frequently overlap in developing countries. The prevalence and predictors of these infections were investigated in three different settlements (rural, semi-urban, and urban) of Gabon. METHODS: During cross-sectional surveys performed from September 2013 to June 2014, 451 individuals were interviewed. In addition, blood and stool samples were analysed for the presence of Plasmodium, filarial roundworm, intestinal protozoan, and helminth infections...
January 30, 2018: Infectious Diseases of Poverty
Fikreslasie Samuel, Asalif Demsew, Yonas Alem, Yonas Hailesilassie
BACKGROUND: Soil-transmitted helminths (STHs) are widespread in underdeveloped countries. In Ethiopia, the prevalence and distribution of helminth infection varies by different exposing risk factors. We therefore investigated the prevalence of and risk factors of STHs infection in school children living in Ambo town, west Shoa Ethiopia. METHODS: In 2014/15, among 375 school children planed to be included in this study, only 321 school children were recruited in the study...
October 10, 2017: BMC Public Health
Janet Masaku, Faith Mutungi, Paul M Gichuki, Collins Okoyo, Doris W Njomo, Sammy M Njenga
BACKGROUND: Schistosome infection and soil-transmitted helminths (STHs) are major public health problems in many developing countries where they contribute to the suffering of populations living in poor settings. A cross-sectional survey was conducted in four rural villages in central region of Kenya to provide information on the status of schistosome and STH infections. Previous studies conducted in the area among primary school children showed that there were high STH and Schistosoma mansoni infections...
2017: Tropical Medicine and Health
Joule Madinga, Katja Polman, Kirezi Kanobana, Lisette van Lieshout, Eric Brienen, Nicolas Praet, Constantin Kabwe, Sarah Gabriël, Pierre Dorny, Pascal Lutumba, Niko Speybroeck
Helminth co-infections are common in sub-Saharan Africa. However, little is known about the distribution and determinants of co-infections with Taenia solium taeniasis/cysticercosis. Building on a previous community-based study on human cysticercosis in Malanga village, we investigated co-infections with Taenia solium, soil-transmitted helminths (STHs) and Schistosoma spp and associated risk factors in a random subsample of 330 participants. Real time PCR assays were used to detect DNA of soil-transmitted helminths (STHs), T...
July 2017: Acta Tropica
Irene Ule Ngole Sumbele, Gladys Belanka Nkemnji, Helen Kuokuo Kimbi
BACKGROUND: Soil-transmitted helminths (STHs) and Plasmodium falciparum infections remain public health problems in Cameroon. A cross-sectional study was carried out in the Mount Cameroon area to determine the prevalence and intensity of STHs and P. falciparum infections in individuals living in different agroecosystems; to assess the influence of these infections on haematological parameters; and to identify the risk factors associated with STH infections. METHODS: STH and malaria parasites were detected using the Kato-Katz method and Giemsa staining of blood films, respectively...
March 16, 2017: Infectious Diseases of Poverty
Stella Kepha, Charles S Mwandawiro, Roy M Anderson, Rachel L Pullan, Fred Nuwaha, Jorge Cano, Sammy M Njenga, Maurice R Odiere, Elizabeth Allen, Simon J Brooker, Birgit Nikolay
BACKGROUND: School-based deworming is widely implemented in various countries to reduce the burden of soil-transmitted helminths (STHs), however, the frequency of drug administration varies in different settings. In this study, we compared the impact of a single annual treatment and 4-monthly treatment over a follow-up among Kenyan school children, and investigated the factors associated with residual infection. METHODS: We performed a secondary analysis of data from a randomized trial investigating whether deworming for STHs alters risk of acquiring malaria...
February 9, 2017: Infectious Diseases of Poverty
Fabio Macchioni, Higinio Segundo, Valentina Totino, Simona Gabrielli, Patricia Rojas, Mimmo Roselli, Grover Adolfo Paredes, Mario Masana, Alessandro Bartoloni, Gabriella Cancrini
INTRODUCTION: In 2013 a coproparasitological survey was carried out in two rural communities of the Bolivian Chaco to determine the prevalence of intestinal parasitic infections (IPIs) and to investigate on possible infection drivers through a questionnaire interview. METHODOLOGY: Faecal samples were examined by microscopy. Samples positive for Entamoeba histolytica complex and Blastocystis were molecularly examined to identify the species/subtypes involved. RESULTS: The overall infection rate was 86%, identical in both communities and mostly due to protozoa...
September 30, 2016: Journal of Infection in Developing Countries
Ali Rostami, Maryam Ebrahimi, Saeed Mehravar, Vahid Fallah Omrani, Shirzad Fallahi, Hamed Behniafar
Soil-transmitted helminth (STH) infections are responsible for significant burden of morbidity and mortality worldwide. Consumption of raw vegetables without proper washing is one of the major routes of such infections. We evaluate the prevalence of STH contamination in commonly used vegetables in Mazandaran province, northern Iran. A total of 772 fresh raw vegetables were obtained from retail markets. Each sample was divided into two groups. One group was used as the unwashed sample and the second group was washed with standard washing procedures...
May 16, 2016: International Journal of Food Microbiology
Zerihun Zerdo, Tsegaye Yohanes, Befikadu Tariku
Mass drug administration (MDA) to the most risky population including school-age children (SAC) is the central strategy to control soil-transmitted helminth (STH) infection. The present study was aimed at estimating the prevalence of STHs reinfection three months posttreatment and associated risk factors among SAC in Chencha district. A cross-sectional study design was employed from April 20 to May 5, 2015, to enroll 408 SAC. Structured questionnaire and Kato-Katz thick smear technique were used to interview parents or guardians and quantify the number of eggs per gram of stool...
2016: Journal of Parasitology Research
Katie Greenland, Ruth Dixon, Shabbir Ali Khan, Kithsiri Gunawardena, Jimmy H Kihara, Jennifer L Smith, Lesley Drake, Prerna Makkar, Sri Raman, Sarman Singh, Sanjay Kumar
BACKGROUND: Soil-transmitted helminths (STHs) infect over a billion individuals worldwide. In India, 241 million children are estimated to need deworming to avert the negative consequences STH infections can have on child health and development. In February-April 2011, 17 million children in Bihar State were dewormed during a government-led school-based deworming campaign. Prior to programme implementation, a study was conducted to assess STH prevalence in the school-age population to direct the programme...
May 2015: PLoS Neglected Tropical Diseases
Jonathan W Andereck, Aaron M Kipp, Michael Ondiek, Sten H Vermund
BACKGROUND: Soil-transmitted helminth (STH) prevalence in children is high in rural southwestern Kenya, but adult prevalence data are scarce. A 2010 study of a village in Nyanza province found a pediatric STH prevalence of 44% using a direct stool-smear method. Adult STH prevalence and associated predictors was measured in the same village. METHODS: Adults (≥18 years) presenting at the out-patient department of the small hospital or community outreach events completed a short questionnaire and provided stool samples...
December 2014: Transactions of the Royal Society of Tropical Medicine and Hygiene
Luzivalda D Couto, Sandra H C Tibiriça, Izabella O Pinheiro, Adalberto Mitterofhe, Adilson C Lima, Milton F Castro, Murilo Gonçalves, Marcio R Silva, Ricardo J P S Guimarães, Florence M Rosa, Elaine S Coimbra
BACKGROUND: Among the neglected tropical diseases (NTDs), schistosomiasis and the three main soil-transmitted helminthiases (STHs), i.e., ascariasis, trichuriasis and hookworm infection, represent the most common infections in developing countries. In Brazil, there is a lack of epidemiological data in many parts of the country, which favors the unawareness of the real situation concerning these diseases. Due to this, we investigated the occurrence of schistosomiasis and STHs in a region of Minas Gerais State, Brazil...
June 2014: Transactions of the Royal Society of Tropical Medicine and Hygiene
Suzanne D van der Werff, Kim Vereecken, Kim van der Laan, Maiza Campos Ponce, Raquel Junco Díaz, Fidel A Núñez, Lázara Rojas Rivero, Mariano Bonet Gorbea, Katja Polman
OBJECTIVE: To evaluate the impact of periodic selective treatment with 500 mg mebendazole on soil-transmitted helminth (STH) infections in Cuban schoolchildren. METHODS: We followed up a cohort of 268 STH-positive schoolchildren, aged 5-14 years at baseline, at six-month intervals for two years and a final follow-up after three years. Kato-Katz stool examination was used to detect infections with Ascaris lumbricoides, Trichuris trichiura and hookworm. Common risk factors related to STHs were assessed by parental questionnaire...
June 2014: Tropical Medicine & International Health: TM & IH
Ashenafi Abossie, Mohammed Seid
BACKGROUND: Parasitic infection is the most prevalent among rural communities in warm and humid regions and where water, hygiene and sanitation facilities are inadequate. Such infection occurs in rural areas where water supplies are not enough to drink and use, and in the absence of environmental sanitation, when the rubbish and other wastes increased, and sewage and waste water are not properly treated. Hence the aim of the study was to assess the prevalence of intestinal parasitosis and associated risk factors...
2014: BMC Public Health
Biniam Mathewos, Abebe Alemu, Desalegn Woldeyohannes, Agersew Alemu, Zelalem Addis, Moges Tiruneh, Mulugeta Aimero, Afework Kassu
BACKGROUND: School age children are one of the groups at high risk for intestinal parasitic infections especially in developing countries like Ethiopia as the supply of good quality drinking water and latrine coverage are poor. Though there are previous data on the prevalence of soil transmitted helminths (STHs) and Schistosoma mansoni infection among these high risk groups current status in the study area is unknown. Therefore, the aim of this study was to determine the current prevalence and associated risk factors of STHs and S...
2014: BMC Research Notes
Ricardo J Soares Magalhães, Antonio Langa, João Mário Pedro, José Carlos Sousa-Figueiredo, Archie C A Clements, Susana Vaz Nery
Anaemia is known to have an impact on child development and mortality and is a severe public health problem in most countries in sub-Saharan Africa. We investigated the consistency between ecological and individual-level approaches to anaemia mapping by building spatial anaemia models for children aged ≤15 years using different modelling approaches. We aimed to (i) quantify the role of malnutrition, malaria, Schistosoma haematobium and soil-transmitted helminths (STHs) in anaemia endemicity; and (ii) develop a high resolution predictive risk map of anaemia for the municipality of Dande in northern Angola...
May 2013: Geospatial Health
Xiaobing Wang, Linxiu Zhang, Renfu Luo, Guofei Wang, Yingdan Chen, Alexis Medina, Karen Eggleston, Scott Rozelle, D Scott Smith
We conducted a survey of 1707 children in 141 impoverished rural areas of Guizhou and Sichuan Provinces in Southwest China. Kato-Katz smear testing of stool samples elucidated the prevalence of ascariasis, trichuriasis and hookworm infections in pre-school and school aged children. Demographic, hygiene, household and anthropometric data were collected to better understand risks for infection in this population. 21.2 percent of pre-school children and 22.9 percent of school aged children were infected with at least one of the three types of STH...
2012: PloS One
Pauline N M Mwinzi, Susan P Montgomery, Chrispin O Owaga, Mariam Mwanje, Erick M Muok, John G Ayisi, Kayla F Laserson, Erick M Muchiri, W Evan Secor, Diana M S Karanja
BACKGROUND: Schistosome and soil-transmitted helminth (STH) infections are recognized as major global public health problems, causing severe and subtle morbidity, including significant educational and nutritional effects in children. Although effective and safe drugs are available, ensuring access to these drugs by all those at risk of schistosomiasis and STHs is still a challenge. Community-directed intervention (CDI) has been used successfully for mass distribution of drugs for other diseases such as onchocerciasis and lymphatic filariasis...
2012: Parasites & Vectors
Nicholas Midzi, Sekesai Mtapuri-Zinyowera, Munyaradzi P Mapingure, Noah H Paul, Davison Sangweme, Gibson Hlerema, Masceline J Mutsaka, Farisai Tongogara, Godfrey Makware, Vivian Chadukura, Kimberly C Brouwer, Francisca Mutapi, Nirbhay Kumar, Takafira Mduluza
BACKGROUND: Helminth infection rates in grade three children are used as proxy indicators of community infection status and to guide treatment strategies in endemic areas. However knowledge, attitudes and practices (KAP) of this target age group (8-10 years) in relation to schistosomiasis, soil transmitted helminthiasis (STHs) and malaria is not known at a time when integrated plasmodium - helminth control strategies are being advocated. This study sought to assess KAP of grade 3 children in relation to schistosomiasis, STHs and malaria in order to establish an effective school based health education for disease transmission control...
2011: BMC Infectious Diseases
Rachel L Pullan, Peter W Gething, Jennifer L Smith, Charles S Mwandawiro, Hugh J W Sturrock, Caroline W Gitonga, Simon I Hay, Simon Brooker
BACKGROUND: Implementation of control of parasitic diseases requires accurate, contemporary maps that provide intervention recommendations at policy-relevant spatial scales. To guide control of soil transmitted helminths (STHs), maps are required of the combined prevalence of infection, indicating where this prevalence exceeds an intervention threshold of 20%. Here we present a new approach for mapping the observed prevalence of STHs, using the example of Kenya in 2009. METHODS AND FINDINGS: Observed prevalence data for hookworm, Ascaris lumbricoides and Trichuris trichiura were assembled for 106,370 individuals from 945 cross-sectional surveys undertaken between 1974 and 2009...
February 8, 2011: PLoS Neglected Tropical Diseases
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