{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T15:12:42Z","timestamp":1777907562586,"version":"3.51.4"},"reference-count":27,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T00:00:00Z","timestamp":1767830400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Trop Doct"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:p>\n                    Chikungunya fever is an arboviral disease and remains a major public health concern in India ever since its first emergence in 1963 in Kolkata. Delhi has witnessed several outbreaks over the years. This retrospective study was performed to examine the epidemiological dynamics on all clinically suspected Chikungunya cases tested by ELISA for anti-CHIK virus IgM antibodies from 2010 to 2020 at a tertiary care hospital in Delhi. Archived data of suspected patients screened for CHIKV IgM by ELISA were retrieved for the period 2010\u20132020. Epidemiological data was used in the study. GIS mapping was done for the positive cases. Among the 445 samples tested, 57.3% were positive with the greatest number of cases (76.5%) in 2016 and significantly higher number of cases in monsoon &amp; post-monsoon periods (\n                    <jats:italic toggle=\"yes\">p<\/jats:italic>\n                    \u2009&lt;\u20090.005). Seropositivity was highest in patients aged 45\u201354 years (69.6%); however, the disease did not show predilection for a specific gender. GIS mapping showed the burden of Chikungunya infection was concentrated in a 5\u201310\u2005km radius from the study site with significant presence of cross-border cases. Our study indicates a geographically concentrated burden of Chikungunya in East and South East Delhi with ebbs and flow over time in the past decade. In view of non-availability of any licensed vaccine for this disease, surveillance of active cases, vector management and mapping of disease may help in prevention strategies.\n                  <\/jats:p>","DOI":"10.1177\/00494755251411028","type":"journal-article","created":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T18:30:25Z","timestamp":1767897025000},"page":"263-269","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Seroprevalence of chikungunya virus infection in East Delhi over a decade: A retrospective study"],"prefix":"10.1177","volume":"56","author":[{"given":"Swati","family":"Sinha","sequence":"first","affiliation":[{"name":"UCMS & GTBH"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anshdha","family":"Shah","sequence":"additional","affiliation":[{"name":"UCMS & GTBH"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charu","family":"Jain","sequence":"additional","affiliation":[{"name":"UCMS & GTBH"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sumana","family":"Bera","sequence":"additional","affiliation":[{"name":"Jawaharlal Institute of Postgraduate Medical Education and Research"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Narendra Singh","family":"Mogha","sequence":"additional","affiliation":[{"name":"UCMS & GTBH"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8117-2423","authenticated-orcid":false,"given":"Shukla","family":"Das","sequence":"additional","affiliation":[{"name":"UCMS & GTBH"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2026,1,8]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41572-023-00429-2"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1038\/nrmicro2368"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMra1406035"},{"key":"e_1_3_3_5_2","article-title":"A single mutation in chikungunya virus affects vector specificity and epidemic potential","volume":"3","author":"Tsetsarkin KA","year":"2007","unstructured":"Tsetsarkin KA, Vanlandingham DL, McGee CE, et al. A single mutation in chikungunya virus affects vector specificity and epidemic potential. PLOS Pathog [Internet] 2007; 3: e201. https:\/\/journals.plos.org\/plospathogens\/article?id=10.1371\/ journal.ppat.0030201","journal-title":"PLOS Pathog [Internet]"},{"key":"e_1_3_3_6_2","article-title":"Genome microevolution of Chikungunya viruses causing the Indian ocean outbreak","volume":"3","author":"Schuffenecker I","year":"2006","unstructured":"Schuffenecker I, Iteman I, Michault A, et al. Genome microevolution of Chikungunya viruses causing the Indian ocean outbreak. PLOS Med [Internet] 2006; 3: e263. https:\/\/journals.plos.org\/plosmedicine\/article?id=10.1371\/journal.pmed.0030263","journal-title":"PLOS Med [Internet]"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijid.2017.03.006"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1093\/femspd\/ftv119"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1086\/605496"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1099\/vir.0.82858-0"},{"key":"e_1_3_3_11_2","article-title":"The global distribution of the arbovirus vectors Aedes aegypti and Ae. albopictus","volume":"4","author":"Kraemer M","unstructured":"Kraemer M, Sinka M, Duda K, et al. The global distribution of the arbovirus vectors Aedes aegypti and Ae. albopictus. 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