Geographic information system (GIS) mapping of lymphatic filariasis endemic areas of Gampaha District, Sri Lanka based on epidemiological and entomological screening.
Identifieur interne : 005225 ( Ncbi/Checkpoint ); précédent : 005224; suivant : 005226Geographic information system (GIS) mapping of lymphatic filariasis endemic areas of Gampaha District, Sri Lanka based on epidemiological and entomological screening.
Auteurs : N D A D. Wijegunawardana [Sri Lanka] ; Y I N Silva Gunawardene ; Aresha Manamperi ; H. Senarathne ; W. AbeyewickremeSource :
- The Southeast Asian journal of tropical medicine and public health [ 0125-1562 ] ; 2012.
Descripteurs français
- KwdFr :
- Adolescent, Adulte, Adulte d'âge moyen, Altitude, Animaux, Caractéristiques de l'habitat, Connaissances, attitudes et pratiques en santé, Culicidae (parasitologie), Enfant, Enfant d'âge préscolaire, Femelle, Filariose lymphatique (diagnostic), Filariose lymphatique (épidémiologie), Humains, Jeune adulte, Maladies endémiques, Mâle, Prévalence, Réaction de polymérisation en chaîne, Sri Lanka (épidémiologie), Systèmes d'information géographique, Test ELISA, Vecteurs insectes (parasitologie), Wuchereria bancrofti.
- MESH :
- diagnostic : Filariose lymphatique.
- parasitologie : Culicidae, Vecteurs insectes.
- épidémiologie : Filariose lymphatique, Sri Lanka.
- Adolescent, Adulte, Adulte d'âge moyen, Altitude, Animaux, Caractéristiques de l'habitat, Connaissances, attitudes et pratiques en santé, Enfant, Enfant d'âge préscolaire, Femelle, Humains, Jeune adulte, Maladies endémiques, Mâle, Prévalence, Réaction de polymérisation en chaîne, Systèmes d'information géographique, Test ELISA, Wuchereria bancrofti.
- Wicri :
- geographic : Sri Lanka.
English descriptors
- KwdEn :
- Adolescent, Adult, Altitude, Animals, Child, Child, Preschool, Culicidae (parasitology), Elephantiasis, Filarial (diagnosis), Elephantiasis, Filarial (epidemiology), Endemic Diseases, Enzyme-Linked Immunosorbent Assay, Female, Geographic Information Systems, Health Knowledge, Attitudes, Practice, Humans, Insect Vectors (parasitology), Male, Middle Aged, Polymerase Chain Reaction, Prevalence, Residence Characteristics, Sri Lanka (epidemiology), Wuchereria bancrofti, Young Adult.
- MESH :
- geographic , epidemiology : Sri Lanka.
- diagnosis : Elephantiasis, Filarial.
- epidemiology : Elephantiasis, Filarial.
- parasitology : Culicidae, Insect Vectors.
- Adolescent, Adult, Altitude, Animals, Child, Child, Preschool, Endemic Diseases, Enzyme-Linked Immunosorbent Assay, Female, Geographic Information Systems, Health Knowledge, Attitudes, Practice, Humans, Male, Middle Aged, Polymerase Chain Reaction, Prevalence, Residence Characteristics, Wuchereria bancrofti, Young Adult.
Abstract
The objective of this study was to develop a site directed geographic information system (GIS) map of lymphatic filariasis (LF) in Gampaha District, Sri Lanka as a guide for targeted control activities. Epidemiological and entomological screening of LF was carried out in nine pre-identified endemic areas in Gampaha District, using night blood screening and pool-screening PCR-ELISA. In total, 1,073 subjects (286 children, 787 adults) from 9 sites were examined. Positive cases were detected at 2 sites, with prevalence rates of 0.5% (Hekiththa) and 3.4% (Peliyagoda); the prevalence of microfilaria (mf) among adult Culex quinquefasciatus mosquitoes surveyed was 30%. The overall prevalence of mosquitoes with L1-L2 larvae of W. bancrofti ranged from 0% to 8.31% using dissection and point estimates of infection prevalence, and ranged from 0 to 32.4% using PCR-ELISA. The largest number of human cases was found at altitudes of 2.5-3.5 min highly populated areas, where transmission appears to have taken place. Questionnaires indicated that limited community awareness of LF may be a reason for the fairly static infection prevalent among the local population. The GIS mapping of LF cases shows a considerable prevalence of LF and marked variability by geographic site in Gampaha.
PubMed: 23077834
Affiliations:
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Wijegunawardana</name><affiliation wicri:level="1"><nlm:affiliation>Molecular Medicine Unit, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka.</nlm:affiliation><country xml:lang="fr">Sri Lanka</country><wicri:regionArea>Molecular Medicine Unit, Faculty of Medicine, University of Kelaniya, Ragama</wicri:regionArea><wicri:noRegion>Ragama</wicri:noRegion></affiliation></author><author><name sortKey="Gunawardene, Y I N Silva" sort="Gunawardene, Y I N Silva" uniqKey="Gunawardene Y" first="Y I N Silva" last="Gunawardene">Y I N Silva Gunawardene</name></author><author><name sortKey="Manamperi, Aresha" sort="Manamperi, Aresha" uniqKey="Manamperi A" first="Aresha" last="Manamperi">Aresha Manamperi</name></author><author><name sortKey="Senarathne, H" sort="Senarathne, H" uniqKey="Senarathne H" first="H" last="Senarathne">H. Senarathne</name></author><author><name sortKey="Abeyewickreme, W" sort="Abeyewickreme, W" uniqKey="Abeyewickreme W" first="W" last="Abeyewickreme">W. 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Abeyewickreme</name></author></analytic><series><title level="j">The Southeast Asian journal of tropical medicine and public health</title><idno type="ISSN">0125-1562</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adolescent</term><term>Adult</term><term>Altitude</term><term>Animals</term><term>Child</term><term>Child, Preschool</term><term>Culicidae (parasitology)</term><term>Elephantiasis, Filarial (diagnosis)</term><term>Elephantiasis, Filarial (epidemiology)</term><term>Endemic Diseases</term><term>Enzyme-Linked Immunosorbent Assay</term><term>Female</term><term>Geographic Information Systems</term><term>Health Knowledge, Attitudes, Practice</term><term>Humans</term><term>Insect Vectors (parasitology)</term><term>Male</term><term>Middle Aged</term><term>Polymerase Chain Reaction</term><term>Prevalence</term><term>Residence Characteristics</term><term>Sri Lanka (epidemiology)</term><term>Wuchereria bancrofti</term><term>Young Adult</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adolescent</term><term>Adulte</term><term>Adulte d'âge moyen</term><term>Altitude</term><term>Animaux</term><term>Caractéristiques de l'habitat</term><term>Connaissances, attitudes et pratiques en santé</term><term>Culicidae (parasitologie)</term><term>Enfant</term><term>Enfant d'âge préscolaire</term><term>Femelle</term><term>Filariose lymphatique (diagnostic)</term><term>Filariose lymphatique (épidémiologie)</term><term>Humains</term><term>Jeune adulte</term><term>Maladies endémiques</term><term>Mâle</term><term>Prévalence</term><term>Réaction de polymérisation en chaîne</term><term>Sri Lanka (épidémiologie)</term><term>Systèmes d'information géographique</term><term>Test ELISA</term><term>Vecteurs insectes (parasitologie)</term><term>Wuchereria bancrofti</term></keywords><keywords scheme="MESH" type="geographic" qualifier="epidemiology" xml:lang="en"><term>Sri Lanka</term></keywords><keywords scheme="MESH" qualifier="diagnosis" xml:lang="en"><term>Elephantiasis, Filarial</term></keywords><keywords scheme="MESH" qualifier="diagnostic" xml:lang="fr"><term>Filariose lymphatique</term></keywords><keywords scheme="MESH" qualifier="epidemiology" xml:lang="en"><term>Elephantiasis, Filarial</term></keywords><keywords scheme="MESH" qualifier="parasitologie" xml:lang="fr"><term>Culicidae</term><term>Vecteurs insectes</term></keywords><keywords scheme="MESH" qualifier="parasitology" xml:lang="en"><term>Culicidae</term><term>Insect Vectors</term></keywords><keywords scheme="MESH" qualifier="épidémiologie" xml:lang="fr"><term>Filariose lymphatique</term><term>Sri Lanka</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adolescent</term><term>Adult</term><term>Altitude</term><term>Animals</term><term>Child</term><term>Child, Preschool</term><term>Endemic Diseases</term><term>Enzyme-Linked Immunosorbent Assay</term><term>Female</term><term>Geographic Information Systems</term><term>Health Knowledge, Attitudes, Practice</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Polymerase Chain Reaction</term><term>Prevalence</term><term>Residence Characteristics</term><term>Wuchereria bancrofti</term><term>Young Adult</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adolescent</term><term>Adulte</term><term>Adulte d'âge moyen</term><term>Altitude</term><term>Animaux</term><term>Caractéristiques de l'habitat</term><term>Connaissances, attitudes et pratiques en santé</term><term>Enfant</term><term>Enfant d'âge préscolaire</term><term>Femelle</term><term>Humains</term><term>Jeune adulte</term><term>Maladies endémiques</term><term>Mâle</term><term>Prévalence</term><term>Réaction de polymérisation en chaîne</term><term>Systèmes d'information géographique</term><term>Test ELISA</term><term>Wuchereria bancrofti</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Sri Lanka</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The objective of this study was to develop a site directed geographic information system (GIS) map of lymphatic filariasis (LF) in Gampaha District, Sri Lanka as a guide for targeted control activities. Epidemiological and entomological screening of LF was carried out in nine pre-identified endemic areas in Gampaha District, using night blood screening and pool-screening PCR-ELISA. In total, 1,073 subjects (286 children, 787 adults) from 9 sites were examined. Positive cases were detected at 2 sites, with prevalence rates of 0.5% (Hekiththa) and 3.4% (Peliyagoda); the prevalence of microfilaria (mf) among adult Culex quinquefasciatus mosquitoes surveyed was 30%. The overall prevalence of mosquitoes with L1-L2 larvae of W. bancrofti ranged from 0% to 8.31% using dissection and point estimates of infection prevalence, and ranged from 0 to 32.4% using PCR-ELISA. The largest number of human cases was found at altitudes of 2.5-3.5 min highly populated areas, where transmission appears to have taken place. Questionnaires indicated that limited community awareness of LF may be a reason for the fairly static infection prevalent among the local population. The GIS mapping of LF cases shows a considerable prevalence of LF and marked variability by geographic site in Gampaha.</div></front></TEI><affiliations><list><country><li>Sri Lanka</li></country></list><tree><noCountry><name sortKey="Abeyewickreme, W" sort="Abeyewickreme, W" uniqKey="Abeyewickreme W" first="W" last="Abeyewickreme">W. Abeyewickreme</name><name sortKey="Gunawardene, Y I N Silva" sort="Gunawardene, Y I N Silva" uniqKey="Gunawardene Y" first="Y I N Silva" last="Gunawardene">Y I N Silva Gunawardene</name><name sortKey="Manamperi, Aresha" sort="Manamperi, Aresha" uniqKey="Manamperi A" first="Aresha" last="Manamperi">Aresha Manamperi</name><name sortKey="Senarathne, H" sort="Senarathne, H" uniqKey="Senarathne H" first="H" last="Senarathne">H. Senarathne</name></noCountry><country name="Sri Lanka"><noRegion><name sortKey="Wijegunawardana, N D A D" sort="Wijegunawardana, N D A D" uniqKey="Wijegunawardana N" first="N D A D" last="Wijegunawardana">N D A D. 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