Field Evaluation of Malaria Microscopy, Rapid Malaria Tests and Loop-Mediated Isothermal Amplification in a Rural Hospital in South Western Ethiopia
BACKGROUND: In up to one third of the hospitals in some rural areas of Africa, laboratory services in malaria diagnosis are limited to microscopy by thin film, as no capability to perform thick film exists (gold standard in terms of sensitivity for malaria diagnosis). A new rapid molecular malaria d...
| Autores: | , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Instituto de Salud Carlos III (ISCIII) |
| Repositorio: | Repisalud |
| Idioma: | inglés |
| OAI Identifier: | oai:repisalud.isciii.es:20.500.12105/6944 |
| Acceso en línea: | http://hdl.handle.net/20.500.12105/6944 |
| Access Level: | acceso abierto |
| Palabra clave: | Adolescent Adult Aged Child DNA, Protozoan Ethiopia Female Humans Malaria, Falciparum Male Plasmodium falciparum Hospitals, Rural |
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Field Evaluation of Malaria Microscopy, Rapid Malaria Tests and Loop-Mediated Isothermal Amplification in a Rural Hospital in South Western EthiopiaCuadros, JuanPérez-Tanoira, RamónPrieto-Pérez, LauraMartin-Martin, InesBerzosa, PedroGonzalez-Mora, VicentaTisiano, GebreBalcha, SebleRamos, Jose ManuelGórgolas, MiguelAdolescentAdultAgedChildDNA, ProtozoanEthiopiaFemaleHumansMalaria, FalciparumMalePlasmodium falciparumHospitals, RuralBACKGROUND: In up to one third of the hospitals in some rural areas of Africa, laboratory services in malaria diagnosis are limited to microscopy by thin film, as no capability to perform thick film exists (gold standard in terms of sensitivity for malaria diagnosis). A new rapid molecular malaria diagnostic test called Loop-mediated isothermal DNA amplification (LAMP) has been recently validated in clinical trials showing exceptional sensitivity and specificity features. It could be a reliable diagnostic tool to be implemented without special equipment or training. OBJECTIVE: The objective of this proof of concept study was to confirm the feasibility of using LAMP technique for diagnosis of malaria in a rural Ethiopian hospital with limited resources. METHODOLOGY/PRINCIPAL FINDINGS: This study was carried out in Gambo General Hospital, West Arsi Province (Ethiopia), from November 1st to December 31st 2013. A total of 162 patients with a non-focal febrile syndrome were investigated. The diagnostic capability (sensitivity, specificity, positive predictive and negative predictive values) of rapid malaria tests and microscopy by thin film was evaluated in comparison with LAMP. Eleven (6.79%) out of the 162 patients with fever and suspected malaria, tested positive for LAMP, 3 (1.85%) for rapid malaria tests and none of the eleven cases was detected by thin film microscopy. CONCLUSIONS/SIGNIFICANCE: LAMP can be performed in basic rural laboratories without the need for specialized infrastructure and it may set a reliable tool for malaria control to detect a low level parasitemia.Public Library of Science (PLOS)Rural Gambo Hospital (Etiopia)Autonomous University of Madrid (España)20182018-12-2620152015-11-1020152015-11-10research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/20.500.12105/6944reponame:Repisaludinstname:Instituto de Salud Carlos III (ISCIII)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repisalud.isciii.es:20.500.12105/69442026-06-12T12:43:37Z |
| dc.title.none.fl_str_mv |
Field Evaluation of Malaria Microscopy, Rapid Malaria Tests and Loop-Mediated Isothermal Amplification in a Rural Hospital in South Western Ethiopia |
| title |
Field Evaluation of Malaria Microscopy, Rapid Malaria Tests and Loop-Mediated Isothermal Amplification in a Rural Hospital in South Western Ethiopia |
| spellingShingle |
Field Evaluation of Malaria Microscopy, Rapid Malaria Tests and Loop-Mediated Isothermal Amplification in a Rural Hospital in South Western Ethiopia Cuadros, Juan Adolescent Adult Aged Child DNA, Protozoan Ethiopia Female Humans Malaria, Falciparum Male Plasmodium falciparum Hospitals, Rural |
| title_short |
Field Evaluation of Malaria Microscopy, Rapid Malaria Tests and Loop-Mediated Isothermal Amplification in a Rural Hospital in South Western Ethiopia |
| title_full |
Field Evaluation of Malaria Microscopy, Rapid Malaria Tests and Loop-Mediated Isothermal Amplification in a Rural Hospital in South Western Ethiopia |
| title_fullStr |
Field Evaluation of Malaria Microscopy, Rapid Malaria Tests and Loop-Mediated Isothermal Amplification in a Rural Hospital in South Western Ethiopia |
| title_full_unstemmed |
Field Evaluation of Malaria Microscopy, Rapid Malaria Tests and Loop-Mediated Isothermal Amplification in a Rural Hospital in South Western Ethiopia |
| title_sort |
Field Evaluation of Malaria Microscopy, Rapid Malaria Tests and Loop-Mediated Isothermal Amplification in a Rural Hospital in South Western Ethiopia |
| dc.creator.none.fl_str_mv |
Cuadros, Juan Pérez-Tanoira, Ramón Prieto-Pérez, Laura Martin-Martin, Ines Berzosa, Pedro Gonzalez-Mora, Vicenta Tisiano, Gebre Balcha, Seble Ramos, Jose Manuel Górgolas, Miguel |
| author |
Cuadros, Juan |
| author_facet |
Cuadros, Juan Pérez-Tanoira, Ramón Prieto-Pérez, Laura Martin-Martin, Ines Berzosa, Pedro Gonzalez-Mora, Vicenta Tisiano, Gebre Balcha, Seble Ramos, Jose Manuel Górgolas, Miguel |
| author_role |
author |
| author2 |
Pérez-Tanoira, Ramón Prieto-Pérez, Laura Martin-Martin, Ines Berzosa, Pedro Gonzalez-Mora, Vicenta Tisiano, Gebre Balcha, Seble Ramos, Jose Manuel Górgolas, Miguel |
| author2_role |
author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Rural Gambo Hospital (Etiopia) Autonomous University of Madrid (España) |
| dc.subject.none.fl_str_mv |
Adolescent Adult Aged Child DNA, Protozoan Ethiopia Female Humans Malaria, Falciparum Male Plasmodium falciparum Hospitals, Rural |
| topic |
Adolescent Adult Aged Child DNA, Protozoan Ethiopia Female Humans Malaria, Falciparum Male Plasmodium falciparum Hospitals, Rural |
| description |
BACKGROUND: In up to one third of the hospitals in some rural areas of Africa, laboratory services in malaria diagnosis are limited to microscopy by thin film, as no capability to perform thick film exists (gold standard in terms of sensitivity for malaria diagnosis). A new rapid molecular malaria diagnostic test called Loop-mediated isothermal DNA amplification (LAMP) has been recently validated in clinical trials showing exceptional sensitivity and specificity features. It could be a reliable diagnostic tool to be implemented without special equipment or training. OBJECTIVE: The objective of this proof of concept study was to confirm the feasibility of using LAMP technique for diagnosis of malaria in a rural Ethiopian hospital with limited resources. METHODOLOGY/PRINCIPAL FINDINGS: This study was carried out in Gambo General Hospital, West Arsi Province (Ethiopia), from November 1st to December 31st 2013. A total of 162 patients with a non-focal febrile syndrome were investigated. The diagnostic capability (sensitivity, specificity, positive predictive and negative predictive values) of rapid malaria tests and microscopy by thin film was evaluated in comparison with LAMP. Eleven (6.79%) out of the 162 patients with fever and suspected malaria, tested positive for LAMP, 3 (1.85%) for rapid malaria tests and none of the eleven cases was detected by thin film microscopy. CONCLUSIONS/SIGNIFICANCE: LAMP can be performed in basic rural laboratories without the need for specialized infrastructure and it may set a reliable tool for malaria control to detect a low level parasitemia. |
| publishDate |
2015 |
| dc.date.none.fl_str_mv |
2015 2015-11-10 2015 2015-11-10 2018 2018-12-26 |
| dc.type.none.fl_str_mv |
research article http://purl.org/coar/resource_type/c_2df8fbb1 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/20.500.12105/6944 |
| url |
http://hdl.handle.net/20.500.12105/6944 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Public Library of Science (PLOS) |
| publisher.none.fl_str_mv |
Public Library of Science (PLOS) |
| dc.source.none.fl_str_mv |
reponame:Repisalud instname:Instituto de Salud Carlos III (ISCIII) |
| instname_str |
Instituto de Salud Carlos III (ISCIII) |
| reponame_str |
Repisalud |
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Repisalud |
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|
| repository.mail.fl_str_mv |
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1869408648496676864 |
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15,811543 |