Dengue infection among tribal population in the Nilgiris district, Tamil Nadu, India

Background & objectives: Dengue emerged as an important public health problem in Tamil Nadu from 2000 onwards, reported in all the districts as an endemic disease of Tamil Nadu except Nilgiris district. So this study was carried out to understand the dengue epidemiology in Nilgiris district. Met...

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Main Authors: P Philip Samuel, R Govindarajan, R Krishnamoorthi, S Victor Jerald Leo, V Rajamannar, J Nagaraj
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2021-01-01
Series:Journal of Vector Borne Diseases
Subjects:
Online Access:http://www.jvbd.org/article.asp?issn=0972-9062;year=2021;volume=58;issue=2;spage=154;epage=158;aulast=Samuel
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author P Philip Samuel
R Govindarajan
R Krishnamoorthi
S Victor Jerald Leo
V Rajamannar
J Nagaraj
author_facet P Philip Samuel
R Govindarajan
R Krishnamoorthi
S Victor Jerald Leo
V Rajamannar
J Nagaraj
author_sort P Philip Samuel
collection DOAJ
description Background & objectives: Dengue emerged as an important public health problem in Tamil Nadu from 2000 onwards, reported in all the districts as an endemic disease of Tamil Nadu except Nilgiris district. So this study was carried out to understand the dengue epidemiology in Nilgiris district. Methods: Block-wise study was made at the Nilgiris district. The clinicians at the Nilgiris Adivasi Welfare Association hospitals (NAWA) situated in Kotagiri, Kozhikarai and Primary Health Centers from Kunjpannai, Arayoor, and Soloor Mattam, examined and recorded symptoms and collected blood samples from the dengue-suspected patients. These samples were centrifuged at 4°C and stored. Serum samples (267 nos.) collected from dengue-suspected patients for two years period from 2014 to 2016 were screened for dengue infection. Results: First year study conducted during 2014-15 showed 13 dengue positives (8.39%) mainly from Kotagiri block (9 nos. - 69.2%) and the second year study conducted during 2015-16 showed 12 dengue positives (10.71%) found mostly from Udagamandalam block (6 nos.- 50%). People belonging to 6 different tribes - Irular, Toda, Kota, Kurumba, Kattunaickan, and Paniya were found infected with dengue and more Irular positives were recorded in both the years (5 Irular-2014-15 & 11 Irular -2015-16). First year detected more female positives (92.3%) whereas the second year showed 5 males (41.7%) and 7 females (58.3%). Interpretation & conclusion: This study unearthed the hidden disease dengue to be prevalent among the tribal community and emphasized the need for the establishment of a permanent dengue surveillance system with improved disease diagnostics, to initiate effective vector control efforts to stop dengue transmission from this hilly region.
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spelling doaj.art-3391dd8fc91a49549d3440bfc7e06de82022-12-22T01:35:20ZengWolters Kluwer Medknow PublicationsJournal of Vector Borne Diseases0972-90622021-01-0158215415810.4103/0972-9062.328973Dengue infection among tribal population in the Nilgiris district, Tamil Nadu, IndiaP Philip SamuelR GovindarajanR KrishnamoorthiS Victor Jerald LeoV RajamannarJ NagarajBackground & objectives: Dengue emerged as an important public health problem in Tamil Nadu from 2000 onwards, reported in all the districts as an endemic disease of Tamil Nadu except Nilgiris district. So this study was carried out to understand the dengue epidemiology in Nilgiris district. Methods: Block-wise study was made at the Nilgiris district. The clinicians at the Nilgiris Adivasi Welfare Association hospitals (NAWA) situated in Kotagiri, Kozhikarai and Primary Health Centers from Kunjpannai, Arayoor, and Soloor Mattam, examined and recorded symptoms and collected blood samples from the dengue-suspected patients. These samples were centrifuged at 4°C and stored. Serum samples (267 nos.) collected from dengue-suspected patients for two years period from 2014 to 2016 were screened for dengue infection. Results: First year study conducted during 2014-15 showed 13 dengue positives (8.39%) mainly from Kotagiri block (9 nos. - 69.2%) and the second year study conducted during 2015-16 showed 12 dengue positives (10.71%) found mostly from Udagamandalam block (6 nos.- 50%). People belonging to 6 different tribes - Irular, Toda, Kota, Kurumba, Kattunaickan, and Paniya were found infected with dengue and more Irular positives were recorded in both the years (5 Irular-2014-15 & 11 Irular -2015-16). First year detected more female positives (92.3%) whereas the second year showed 5 males (41.7%) and 7 females (58.3%). Interpretation & conclusion: This study unearthed the hidden disease dengue to be prevalent among the tribal community and emphasized the need for the establishment of a permanent dengue surveillance system with improved disease diagnostics, to initiate effective vector control efforts to stop dengue transmission from this hilly region.http://www.jvbd.org/article.asp?issn=0972-9062;year=2021;volume=58;issue=2;spage=154;epage=158;aulast=Samueldengue; block; tribal; nawa; nilgiris
spellingShingle P Philip Samuel
R Govindarajan
R Krishnamoorthi
S Victor Jerald Leo
V Rajamannar
J Nagaraj
Dengue infection among tribal population in the Nilgiris district, Tamil Nadu, India
Journal of Vector Borne Diseases
dengue; block; tribal; nawa; nilgiris
title Dengue infection among tribal population in the Nilgiris district, Tamil Nadu, India
title_full Dengue infection among tribal population in the Nilgiris district, Tamil Nadu, India
title_fullStr Dengue infection among tribal population in the Nilgiris district, Tamil Nadu, India
title_full_unstemmed Dengue infection among tribal population in the Nilgiris district, Tamil Nadu, India
title_short Dengue infection among tribal population in the Nilgiris district, Tamil Nadu, India
title_sort dengue infection among tribal population in the nilgiris district tamil nadu india
topic dengue; block; tribal; nawa; nilgiris
url http://www.jvbd.org/article.asp?issn=0972-9062;year=2021;volume=58;issue=2;spage=154;epage=158;aulast=Samuel
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AT rkrishnamoorthi dengueinfectionamongtribalpopulationinthenilgirisdistricttamilnaduindia
AT svictorjeraldleo dengueinfectionamongtribalpopulationinthenilgirisdistricttamilnaduindia
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