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http://dx.doi.org/10.3201/eid2103.141457 | DOI Listing |
Parasit Vectors
December 2024
Global Health and Tropical Medicine- Institute of Hygiene and Tropical Medicine, NOVA University of Lisbon, Rua da Junqueira 100, 1349-008, Lisbon, Portugal.
Background: Tick-borne rickettsioses (TBR) are emerging, neglected, zoonoses, caused by intracellular α-proteobacteria of the genus Rickettsia, that pose a growing public health concern. The aim of the present study was to evaluate rickettsial infections in questing ticks collected from four different ecological areas in mainland Portugal.
Methods: Over a two-year period, a total of 707 questing ticks were collected.
Rickettsia sibirica mongolitimonae is an emerging cause of tickborne rickettsiosis. Since the bacterium was first documented as a human pathogen in 1996, a total of 69 patients with this infection have been reported in the literature. Because of the rising rate of R.
View Article and Find Full Text PDFRev Bras Parasitol Vet
December 2024
Faculdade de Saúde Pública, Universidade de São Paulo - USP, São Paulo, SP, Brasil.
In Brazil, spotted fever (SF) is caused by two species of Rickettsia, both of which are transmitted by Amblyomma ticks: Rickettsia rickettsii, which results in severe and often fatal cases, and Rickettsia parkeri, which causes a mild illness. This study focused on R. parkeri in Amblyomma ovale ticks from the Maciço de Baturité region, Ceará, Northeast Brazil, an area endemic for SF with mild symptoms.
View Article and Find Full Text PDFCureus
November 2024
Internal Medicine, Weiss Memorial Hospital, Chicago, USA.
Human granulocytic anaplasmosis (HGA) is transmitted by the black-legged tick and presents with fever, thrombocytopenia, leukocytopenia, and elevated transaminases. If left untreated, HGA can progress to hemophagocytic lymphohistiocytosis (HLH), which can be fatal. Here, we discuss a case of a woman diagnosed with anaplasmosis who was treated promptly.
View Article and Find Full Text PDFInfect Med (Beijing)
December 2024
Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA 30458, USA.
Background: This scoping review provides a baseline summary of the current records of the ticks, fleas, and mites of public health importance that are present in Bangladesh. It summarizes their geographic distributions and reports the levels of their infestation of livestock, pets, wildlife, and humans, and the clinical and epidemiological studies pertinent to these vectors and their pathogens.
Methods: Sixty-one articles were identified in a literature search, including 43 published since 2011.
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