{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T16:19:43Z","timestamp":1787761183830,"version":"build-2784847793"},"reference-count":18,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,4]]},"abstract":"\n \n \n Background & objectives:<\/jats:italic>\n Scrub typhus is caused by\n Orientia tsutsugamushi<\/jats:italic>\n and transmitted by larval trombiculid chigger mites. Rodents and shrews are hosts for chigger mites in the transmission to humans. Wonder and Sherman traps are widely used for trapping rodents and shrews for the collection of ectoparasitic chigger mites. A comparative trapping study was undertaken in different villages in Vellore district, Tamil Nadu and Thiruvananthapuram district, Kerala, India to evaluate the efficiency of traps for trapping rodents & shrews.\n <\/jats:p>\n \n Methods:<\/jats:italic>\n Wonder and Sherman traps were set in outdoors and indoors to capture the rodents. Wonder Traps, large wired cage, and Sherman Traps are foldable. These traps were employed for the rodents\/ shrew surveillance to gather chigger vector mites. Identification of rodents, chigger mites and Trap index were observed.\n <\/jats:p>\n \n Results:<\/jats:italic>\n Z Test comparing the capture rates showed wonder trap (P<0.001) to be significantly more efficient than the Sherman traps. The number of rodents \/shrews collected in a Sherman trap was always one. But the number of rodents \/shrews collected in a positive wonder tap was 2.83 in both states, 2.25 and 1.24 in Tamil Nadu and Kerala, respectively. Wonder traps (77%) were found more attractive in collecting more rodents in Tamil Nadu compared to Sherman traps (23%). But the Sherman trap (60.9%) was found efficient in collecting more shrews in Kerala compared to wonder traps (39.1%). Shrew\u2019s collection was more in Sherman collections from both Tamil Nadu and Kerala. In Tamil Nadu and Kerala sex-wise collection of Male & female rodent\/shrew was uniformly found in both the wonder (85% &75%) and Sherman traps (86% & 83%) with a maximum proportion of females.\n <\/jats:p>\n \n Interpretation & conclusion:<\/jats:italic>\n Sherman traps can be used as single-capture live traps and on the other hand wonder traps can be used as multiple-capture live-traps. The geographical distribution pattern of various rodents trapped can be determined to identify the target areas for control of a particular species and also for the control of selected species. Mostly females were captured abundantly in both wonder and Sherman traps. In wonder traps, female rodents were trapped as family members in large numbers. Wonder traps are more attractive for trapping more rodents. This study addressed the careful choice of wonder traps for ectoparasitic chigger vector surveillance.\n <\/jats:p>\n <\/jats:sec>","DOI":"10.4103\/0972-9062.321752","type":"journal-article","created":{"date-parts":[[2022,12,21]],"date-time":"2022-12-21T01:32:31Z","timestamp":1671586351000},"page":"141-147","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":2,"title":["A comparative study to evaluate wonder and Sherman traps for the surveillance of ectoparasitic chigger vector mites of the scrub typhus"],"prefix":"10.4103","volume":"58","author":[{"given":"Philip Samuel","family":"Paulraj","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Govindarajan","family":"Renu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krishnamoorthi","family":"Ranganathan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rajamannar","family":"Veeramanoharan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"R1-7-20240830","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1016\/0738-081X(96)00007-7","article-title":"Historical aspects of the rickettsioses","volume":"14","author":"Quintal","year":"1996","journal-title":"Clin Dermatol"},{"key":"R2-7-20240830","doi-asserted-by":"crossref","first-page":"893","DOI":"10.4103\/ijmr.IJMR_1390_15","article-title":"Abundance & distribution of trombiculid mites & Orientia tsutsugamushi, the vectors & pathogen of scrub typhus in rodents & shrews collected from Puducherry & Tamil Nadu, India","volume":"144","author":"Sadanandane","year":"2016","journal-title":"Indian J Med Res"},{"key":"R3-7-20240830","first-page":"147","article-title":"Comparing three live trapping methods for small mammal sampling in cultivated areas of Ne Spain","volume":"21","author":"Torre","year":"2010","journal-title":"Hystrix It. J. Mamm. (n.s"},{"key":"R5-7-20240830","doi-asserted-by":"crossref","first-page":"197","DOI":"10.7601\/mez.48.197","article-title":"Detection of Orientia tsutsugamushi DNA in the individual using polymerase chain reaction in Korea trombiculids","volume":"48","author":"Han-Iiree","year":"1997","journal-title":"Med Entomol Zool"},{"key":"R6-7-20240830","doi-asserted-by":"crossref","first-page":"92","DOI":"10.4103\/0019-557X.85239","article-title":"The emergence of Schoengastiella ligula as the vector of a scrub typhus outbreak in Darjeeling: Has Leptotrombidium deliense been replaced?","volume":"55","author":"Tilak","year":"2011","journal-title":"Indian J Public Health"},{"key":"R7-7-20240830","doi-asserted-by":"crossref","first-page":"194","DOI":"10.1111\/j.1365-2915.2012.01053.x","article-title":"Abundances and host relationships of chigger mites in Yunnan Province, China","volume":"27","author":"Zhan","year":"2013","journal-title":"Med Vet Entomol"},{"key":"R8-7-20240830","doi-asserted-by":"crossref","first-page":"53","DOI":"10.3390\/tropicalmed2040053","article-title":"Infection of Rodents by Orientia tsutsugamushi, the Agent of Scrub Typhus, in Relation to Land Use in Thailand","volume":"2","author":"Chaisiri","year":"2017","journal-title":"Trop Med Infect Dis"},{"key":"R9-7-20240830","doi-asserted-by":"crossref","first-page":"241","DOI":"10.1894\/F14-PS-32.1","article-title":"Comparison of captures between Sherman live traps and Museum Special kill traps","volume":"56","author":"Eulinger","year":"2011","journal-title":"Southwest Nat"},{"key":"R10-7-20240830","doi-asserted-by":"crossref","first-page":"443","DOI":"10.4098\/AT.arch.88-37","article-title":"A sampling of small mammals by different types of traps in Northern Ontario, Canada","volume":"33","author":"Innes","year":"1988","journal-title":"Acta Theriologica"},{"key":"R11-7-20240830","doi-asserted-by":"crossref","first-page":"1018","DOI":"10.2193\/0091-7648(2005)33[1018:CEOLAS]2.0.CO;2","article-title":"Comparative effectiveness of Longworth and Sherman live traps","volume":"33","author":"Anthony","year":"2005","journal-title":"Wildlife Society Bulletin"},{"key":"R14-7-20240830","first-page":"1","article-title":"Field methods for rodent studies in Asia and the Indo-Pacific","volume":"100","author":"Aplin","year":"2003","journal-title":"ACIAR Monograph"},{"key":"R18-7-20240830","first-page":"1","article-title":"Studies on the Trombiculid Mite Fauna of India, Zoo. Surv. India, Kolkata Occ","volume":"212","author":"Stan Fernandes","year":"2003","journal-title":"Paper"},{"key":"R20-7-20240830","doi-asserted-by":"crossref","first-page":"221","DOI":"10.1093\/jmedent\/19.3.221","article-title":"A glossary of chigger terminology (Acari: Trombiculidae)","volume":"19","author":"Goff","year":"1982","journal-title":"J Med Entomol"},{"key":"R22-7-20240830","doi-asserted-by":"crossref","first-page":"e0006062","DOI":"10.1371\/journal.pntd.0006062","article-title":"A review of the global epidemiology of scrub typhus","volume":"11","author":"Xu","year":"2017","journal-title":"PLoSNegl Trop Dis"},{"key":"R23-7-20240830","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1046\/j.0305-1838.2003.00025.x","article-title":"Live trapping to monitor small mammals in Britain","volume":"34","author":"Flowerdew","year":"2004","journal-title":"Mammal Rev"},{"key":"R24-7-20240830","doi-asserted-by":"crossref","first-page":"41","DOI":"10.4098\/AT.arch.72-4","article-title":"Trappability of bank voles in pitfalls and live traps","volume":"17","author":"Andrzejewski","year":"1972","journal-title":"Acta Theriol"},{"key":"R25-7-20240830","first-page":"585","article-title":"Traps and trapping","volume":"I","author":"Jain","year":"1992"},{"key":"R26-7-20240830","doi-asserted-by":"crossref","first-page":"453","DOI":"10.2307\/2402199","article-title":"The reactions of common rats to four types of live- capture trap","volume":"11","author":"Taylor","year":"1974","journal-title":"Journal of Applied Ecology"}],"container-title":["Journal of Vector Borne Diseases"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.4103\/0972-9062.321752","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T15:25:44Z","timestamp":1787757944000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.4103\/0972-9062.321752"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,4]]},"references-count":18,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2021]]}},"URL":"https:\/\/doi.org\/10.4103\/0972-9062.321752","relation":{},"ISSN":["0972-9062"],"issn-type":[{"value":"0972-9062","type":"print"}],"subject":[],"published":{"date-parts":[[2021,4]]}}}