{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T11:23:45Z","timestamp":1791285825935,"version":"4.1.0"},"reference-count":22,"publisher":"FapUNIFESP (SciELO)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Inst. Med. trop. S. Paulo"],"published-print":{"date-parts":[[2015,4]]},"abstract":"<jats:p>Rickettsia typhi is the causal agent of murine typhus; a worldwide zoonotic and vector-borne infectious disease, commonly associated with the presence of domestic and wild rodents. Human cases of murine typhus in the state of Yucat\u00e1n are frequent. However, there is no evidence of the presence of Rickettsia typhi in mammals or vectors in Yucat\u00e1n. The presence of Rickettsia in rodents and their ectoparasites was evaluated in a small municipality of Yucat\u00e1n using the conventional polymerase chain reaction technique and sequencing. The study only identified the presence of Rickettsia typhi in blood samples obtained from Rattus rattus and it reported, for the first time, the presence of R. felis in the flea Polygenis odiosus collected from Ototylomys phyllotis rodent. Additionally, Rickettsia felis was detected in the ectoparasite Ctenocephalides felis fleas parasitizing the wild rodent Peromyscus yucatanicus. This study\u2019s results contributed to a better knowledge of Rickettsia epidemiology in Yucat\u00e1n.<\/jats:p>","DOI":"10.1590\/s0036-46652015000200005","type":"journal-article","created":{"date-parts":[[2015,4,24]],"date-time":"2015-04-24T20:06:04Z","timestamp":1429905964000},"page":"129-132","source":"Crossref","is-referenced-by-count":36,"title":["Rickettsia typhi IN RODENTS AND R. felis IN FLEAS IN YUCAT\u00c1N AS A POSSIBLE CAUSAL AGENT OF UNDEFINED FEBRILE CASES"],"prefix":"10.1590","volume":"57","author":[{"given":"Gaspar","family":"PENICHE-LARA","sequence":"first","affiliation":[{"name":"Universidad Aut\u00f3noma de Yucat\u00e1n, M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karla","family":"DZUL-ROSADO","sequence":"additional","affiliation":[{"name":"Universidad Aut\u00f3noma de Yucat\u00e1n, M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos","family":"P\u00c9REZ-OSORIO","sequence":"additional","affiliation":[{"name":"Universidad Aut\u00f3noma de Yucat\u00e1n, M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jorge","family":"ZAVALA-CASTRO","sequence":"additional","affiliation":[{"name":"Universidad Aut\u00f3noma de Yucat\u00e1n, M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"530","reference":[{"issue":"89","key":"ref1","doi-asserted-by":"crossref","first-page":"39","DOI":"10.21829\/azm.2003.89891773","article-title":"Clave ilustrada para la identificaci\u00f3n de los taxones supraespec\u00edficos de Siphonaptera de M\u00e9xico","author":"Acosta R","year":"2003","journal-title":"Acta Zool Mex"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1046\/j.1523-1739.2003.01260.x","article-title":"Effect of forest fragmentation on Lyme disease 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