Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya
- Autores
- Kepha, Stella; Mazigo, Humphrey D.; Odiere, Maurice R.; Mcharo, Carlos; Safari, Th'uva; Gichuki, Paul M.; Omondi, Wykcliff; Wakesho, Florence; Krolewiecki, Alejandro Javier; Pullan, Rachel L.; Mwandawiro, Charles S.; Oswald, William E.; Halliday, Katherine E.
- Año de publicación
- 2024
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Objectives: Kenya has implemented a national school-based deworming program, which has led to substantial decline in the prevalence of soil-transmitted helminths (STHs), although some pockets of infections remain. To effectively design an STH control program that leads to significant reductions of Trichuris trichiura, there is a need to understand the drivers of persistent infection despite ongoing treatment programs. Methods: This study was conducted between July and September 2019 at the south coast of Kenya, using a two-stage sampling design. First, a school-based cross-sectional survey was conducted in 2265 randomly selected school children from selected schools in areas known to be endemic for T. trichiura . After this, we conducted a nested case-control study wherein all children positive for T. trichiura (142) were matched to 148 negative controls based on age and village. A household survey was then conducted with all household members of cases and controls. In addition, a subsample of 116 children found to be infected with T. trichiura were followed up to assess the efficacy of albendazole at day 21 post-treatment. The predictors of presence of T. trichiura were investigated through multilevel logistic regression, considering clustering of infection. Results: Overall, 34.4% of the children were infected with at least one STH species; T. trichiura was the most common (28.3%), 89.1% of those with T. trichiura had light-intensity infections. The prevalence of T. trichiura was significantly higher in male children and was positively associated with younger age and number of people infected with T. trichiura in a household. The parasitological cure rate and egg reduction rate of T. trichiura were 35% and 51%, respectively. Other STHs identified were hookworm (9.6%) and Ascaris lumbricoides (5.7%). Conclusions: T. trichiura remains a significant public health challenge in the study area with albendazole treatment efficacy against the parasite, remaining lower than the World Health Organization–recommended thresholds. Because of the observed focal transmission of T. trichiura in the current area, control efforts tailored to local conditions and targeting lower implementation units should be used to achieve optimal results on transmission.
Fil: Kepha, Stella. Kenya Medical Research Institute; Kenia
Fil: Mazigo, Humphrey D.. Catholic University of Health and Allied Sciences; Tanzania
Fil: Odiere, Maurice R.. Kenya Medical Research Institute; Kenia
Fil: Mcharo, Carlos. Kenya Medical Research Institute; Kenia
Fil: Safari, Th'uva. Kenya Medical Research Institute; Kenia
Fil: Gichuki, Paul M.. Kenya Medical Research Institute; Kenia
Fil: Omondi, Wykcliff. No especifíca;
Fil: Wakesho, Florence. No especifíca;
Fil: Krolewiecki, Alejandro Javier. Universidad Nacional de Salta. Sede Regional Orán. Instituto de Investigación de Enfermedades Tropicales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pullan, Rachel L.. No especifíca;
Fil: Mwandawiro, Charles S.. Kenya Medical Research Institute; Kenia
Fil: Oswald, William E.. No especifíca;
Fil: Halliday, Katherine E.. No especifíca; - Materia
-
TRICHURIS TRICHIURA
KENYA
SCHOOL AGE CHILDREN
TRANSMISSION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/243640
Ver los metadatos del registro completo
id |
CONICETDig_30b6092ba5d4e5343be5545932b1dbef |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/243640 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in KenyaKepha, StellaMazigo, Humphrey D.Odiere, Maurice R.Mcharo, CarlosSafari, Th'uvaGichuki, Paul M.Omondi, WykcliffWakesho, FlorenceKrolewiecki, Alejandro JavierPullan, Rachel L.Mwandawiro, Charles S.Oswald, William E.Halliday, Katherine E.TRICHURIS TRICHIURAKENYASCHOOL AGE CHILDRENTRANSMISSIONhttps://purl.org/becyt/ford/3.3https://purl.org/becyt/ford/3Objectives: Kenya has implemented a national school-based deworming program, which has led to substantial decline in the prevalence of soil-transmitted helminths (STHs), although some pockets of infections remain. To effectively design an STH control program that leads to significant reductions of Trichuris trichiura, there is a need to understand the drivers of persistent infection despite ongoing treatment programs. Methods: This study was conducted between July and September 2019 at the south coast of Kenya, using a two-stage sampling design. First, a school-based cross-sectional survey was conducted in 2265 randomly selected school children from selected schools in areas known to be endemic for T. trichiura . After this, we conducted a nested case-control study wherein all children positive for T. trichiura (142) were matched to 148 negative controls based on age and village. A household survey was then conducted with all household members of cases and controls. In addition, a subsample of 116 children found to be infected with T. trichiura were followed up to assess the efficacy of albendazole at day 21 post-treatment. The predictors of presence of T. trichiura were investigated through multilevel logistic regression, considering clustering of infection. Results: Overall, 34.4% of the children were infected with at least one STH species; T. trichiura was the most common (28.3%), 89.1% of those with T. trichiura had light-intensity infections. The prevalence of T. trichiura was significantly higher in male children and was positively associated with younger age and number of people infected with T. trichiura in a household. The parasitological cure rate and egg reduction rate of T. trichiura were 35% and 51%, respectively. Other STHs identified were hookworm (9.6%) and Ascaris lumbricoides (5.7%). Conclusions: T. trichiura remains a significant public health challenge in the study area with albendazole treatment efficacy against the parasite, remaining lower than the World Health Organization–recommended thresholds. Because of the observed focal transmission of T. trichiura in the current area, control efforts tailored to local conditions and targeting lower implementation units should be used to achieve optimal results on transmission.Fil: Kepha, Stella. Kenya Medical Research Institute; KeniaFil: Mazigo, Humphrey D.. Catholic University of Health and Allied Sciences; TanzaniaFil: Odiere, Maurice R.. Kenya Medical Research Institute; KeniaFil: Mcharo, Carlos. Kenya Medical Research Institute; KeniaFil: Safari, Th'uva. Kenya Medical Research Institute; KeniaFil: Gichuki, Paul M.. Kenya Medical Research Institute; KeniaFil: Omondi, Wykcliff. No especifíca;Fil: Wakesho, Florence. No especifíca;Fil: Krolewiecki, Alejandro Javier. Universidad Nacional de Salta. Sede Regional Orán. Instituto de Investigación de Enfermedades Tropicales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pullan, Rachel L.. No especifíca;Fil: Mwandawiro, Charles S.. Kenya Medical Research Institute; KeniaFil: Oswald, William E.. No especifíca;Fil: Halliday, Katherine E.. No especifíca;Elsevier2024-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/243640Kepha, Stella; Mazigo, Humphrey D.; Odiere, Maurice R.; Mcharo, Carlos; Safari, Th'uva; et al.; Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya; Elsevier; IJID Regions; 11; 6-2024; 1-92772-7076CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S2772707624000237info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijregi.2024.03.007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:43:49Zoai:ri.conicet.gov.ar:11336/243640instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:43:50.197CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya |
title |
Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya |
spellingShingle |
Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya Kepha, Stella TRICHURIS TRICHIURA KENYA SCHOOL AGE CHILDREN TRANSMISSION |
title_short |
Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya |
title_full |
Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya |
title_fullStr |
Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya |
title_full_unstemmed |
Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya |
title_sort |
Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya |
dc.creator.none.fl_str_mv |
Kepha, Stella Mazigo, Humphrey D. Odiere, Maurice R. Mcharo, Carlos Safari, Th'uva Gichuki, Paul M. Omondi, Wykcliff Wakesho, Florence Krolewiecki, Alejandro Javier Pullan, Rachel L. Mwandawiro, Charles S. Oswald, William E. Halliday, Katherine E. |
author |
Kepha, Stella |
author_facet |
Kepha, Stella Mazigo, Humphrey D. Odiere, Maurice R. Mcharo, Carlos Safari, Th'uva Gichuki, Paul M. Omondi, Wykcliff Wakesho, Florence Krolewiecki, Alejandro Javier Pullan, Rachel L. Mwandawiro, Charles S. Oswald, William E. Halliday, Katherine E. |
author_role |
author |
author2 |
Mazigo, Humphrey D. Odiere, Maurice R. Mcharo, Carlos Safari, Th'uva Gichuki, Paul M. Omondi, Wykcliff Wakesho, Florence Krolewiecki, Alejandro Javier Pullan, Rachel L. Mwandawiro, Charles S. Oswald, William E. Halliday, Katherine E. |
author2_role |
author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
TRICHURIS TRICHIURA KENYA SCHOOL AGE CHILDREN TRANSMISSION |
topic |
TRICHURIS TRICHIURA KENYA SCHOOL AGE CHILDREN TRANSMISSION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.3 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
Objectives: Kenya has implemented a national school-based deworming program, which has led to substantial decline in the prevalence of soil-transmitted helminths (STHs), although some pockets of infections remain. To effectively design an STH control program that leads to significant reductions of Trichuris trichiura, there is a need to understand the drivers of persistent infection despite ongoing treatment programs. Methods: This study was conducted between July and September 2019 at the south coast of Kenya, using a two-stage sampling design. First, a school-based cross-sectional survey was conducted in 2265 randomly selected school children from selected schools in areas known to be endemic for T. trichiura . After this, we conducted a nested case-control study wherein all children positive for T. trichiura (142) were matched to 148 negative controls based on age and village. A household survey was then conducted with all household members of cases and controls. In addition, a subsample of 116 children found to be infected with T. trichiura were followed up to assess the efficacy of albendazole at day 21 post-treatment. The predictors of presence of T. trichiura were investigated through multilevel logistic regression, considering clustering of infection. Results: Overall, 34.4% of the children were infected with at least one STH species; T. trichiura was the most common (28.3%), 89.1% of those with T. trichiura had light-intensity infections. The prevalence of T. trichiura was significantly higher in male children and was positively associated with younger age and number of people infected with T. trichiura in a household. The parasitological cure rate and egg reduction rate of T. trichiura were 35% and 51%, respectively. Other STHs identified were hookworm (9.6%) and Ascaris lumbricoides (5.7%). Conclusions: T. trichiura remains a significant public health challenge in the study area with albendazole treatment efficacy against the parasite, remaining lower than the World Health Organization–recommended thresholds. Because of the observed focal transmission of T. trichiura in the current area, control efforts tailored to local conditions and targeting lower implementation units should be used to achieve optimal results on transmission. Fil: Kepha, Stella. Kenya Medical Research Institute; Kenia Fil: Mazigo, Humphrey D.. Catholic University of Health and Allied Sciences; Tanzania Fil: Odiere, Maurice R.. Kenya Medical Research Institute; Kenia Fil: Mcharo, Carlos. Kenya Medical Research Institute; Kenia Fil: Safari, Th'uva. Kenya Medical Research Institute; Kenia Fil: Gichuki, Paul M.. Kenya Medical Research Institute; Kenia Fil: Omondi, Wykcliff. No especifíca; Fil: Wakesho, Florence. No especifíca; Fil: Krolewiecki, Alejandro Javier. Universidad Nacional de Salta. Sede Regional Orán. Instituto de Investigación de Enfermedades Tropicales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Pullan, Rachel L.. No especifíca; Fil: Mwandawiro, Charles S.. Kenya Medical Research Institute; Kenia Fil: Oswald, William E.. No especifíca; Fil: Halliday, Katherine E.. No especifíca; |
description |
Objectives: Kenya has implemented a national school-based deworming program, which has led to substantial decline in the prevalence of soil-transmitted helminths (STHs), although some pockets of infections remain. To effectively design an STH control program that leads to significant reductions of Trichuris trichiura, there is a need to understand the drivers of persistent infection despite ongoing treatment programs. Methods: This study was conducted between July and September 2019 at the south coast of Kenya, using a two-stage sampling design. First, a school-based cross-sectional survey was conducted in 2265 randomly selected school children from selected schools in areas known to be endemic for T. trichiura . After this, we conducted a nested case-control study wherein all children positive for T. trichiura (142) were matched to 148 negative controls based on age and village. A household survey was then conducted with all household members of cases and controls. In addition, a subsample of 116 children found to be infected with T. trichiura were followed up to assess the efficacy of albendazole at day 21 post-treatment. The predictors of presence of T. trichiura were investigated through multilevel logistic regression, considering clustering of infection. Results: Overall, 34.4% of the children were infected with at least one STH species; T. trichiura was the most common (28.3%), 89.1% of those with T. trichiura had light-intensity infections. The prevalence of T. trichiura was significantly higher in male children and was positively associated with younger age and number of people infected with T. trichiura in a household. The parasitological cure rate and egg reduction rate of T. trichiura were 35% and 51%, respectively. Other STHs identified were hookworm (9.6%) and Ascaris lumbricoides (5.7%). Conclusions: T. trichiura remains a significant public health challenge in the study area with albendazole treatment efficacy against the parasite, remaining lower than the World Health Organization–recommended thresholds. Because of the observed focal transmission of T. trichiura in the current area, control efforts tailored to local conditions and targeting lower implementation units should be used to achieve optimal results on transmission. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/243640 Kepha, Stella; Mazigo, Humphrey D.; Odiere, Maurice R.; Mcharo, Carlos; Safari, Th'uva; et al.; Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya; Elsevier; IJID Regions; 11; 6-2024; 1-9 2772-7076 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/243640 |
identifier_str_mv |
Kepha, Stella; Mazigo, Humphrey D.; Odiere, Maurice R.; Mcharo, Carlos; Safari, Th'uva; et al.; Exploring factors associated with Trichuris trichiura infection in school children in a high-transmission setting in Kenya; Elsevier; IJID Regions; 11; 6-2024; 1-9 2772-7076 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S2772707624000237 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijregi.2024.03.007 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1842268626752634880 |
score |
13.13397 |