Knowledge about ticks and Rickettsiae in Colombia is still limited and the areas of the country where studies have been conducted are scarce. In this study, ticks (Acari, Ixodidae) associated with reptiles and amphibians in San Juan de Carare, Santander department, were morphologically and molecularly identified and tested for the presence of Rickettsia. For the molecular characterization of ticks, CO1, 12S and 16S sequences were generated and compared with other sequences available in genbank. Our analyses confirmed that the collected ticks were , and we provide the first report of this species parasitizing the snake . Of the samples analyzed, 69% were positive for sp. using the gltA, ompA and sca1 genes. Rickettsia sequences generated in this study were also compared to sequences downloaded from genbank by Bayesian inference (BI) and maximum likelihood (ML) phylogenetic analyzes. The presence of a single Rickettsia species, Rickettsia colombianensi, was identified. This study expands the knowledge regarding the distribution of ticks and Rickettsiae in Colombia.
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http://dx.doi.org/10.1016/j.ijppaw.2022.08.004 | DOI Listing |
Ticks Tick Borne Dis
November 2024
Universidad Nacional de Colombia, Sede Bogotá. Facultad de Ciencias, Departamento de Biología, Grupo Caracterización genética e inmunología. Carrera 30 No. 45-03, Bogotá 111321, Colombia. Electronic address:
Ticks are a globally distributed group of hematophagous ectoparasites that parasitize terrestrial vertebrates such as amphibians, reptiles, birds, and mammals. Ticks are vectors and reservoirs of pathogens that play an important role in wildlife and human health. Rickettsia is one of the bacteria transmitted by ticks, which some pathogenic species can cause rickettsiosis, a zoonotic disease that can cause serious harm to humans and animals.
View Article and Find Full Text PDFLife (Basel)
January 2023
Center of Genetics and Molecular Biology, Universidad del Magdalena, Santa Marta 470001, Colombia.
Birds are important hosts in the life cycle of some species of ticks. In Colombia, there are few eco-epidemiological studies of tick-borne diseases; the existing ones have been focused on areas where unusual outbreaks have occurred. This study describes the identification of ticks collected from birds and vegetation, and the detection of bacteria in those ticks and in blood samples from birds in an urban fragment of tropical dry forest in the department of Magdalena, Colombia.
View Article and Find Full Text PDFArch Microbiol
January 2023
Departamento de Patologia, Faculdade de Ciências Agrárias e Veterinárias-UNESP, Reprodução e Saúde Única, Jaboticabal, SP, Brazil.
Chiggers are larval ectoparasites of the Trombiculidae that can transmit pathogens to their hosts. In this study, chiggers collected from birds in Brazil were morphologically identified as Blankaartia sinnamaryi, Eutrombicula batatas, Eutrombicula daemoni, Eutrombicula goeldii, Eutrombicula tinami, and Parasecia gilbertoi. For these specimens, a beginning attempt at molecular identification were also provided, as well as, were genetically screened to detect bacterial pathogens.
View Article and Find Full Text PDFTicks Tick Borne Dis
January 2023
Laboratorio de Investigación en Vectores (LIVE), Centro de Investigación en Enfermedades Tropicales (CIET), Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica. Electronic address:
In the past two decades, new species of Rickettsia have been detected and described worldwide, some of them considered pathogenic for humans. Although Costa Rica is considered a biodiversity hotspot, the knowledge about rickettsiae in sylvatic ecosystems and wild animals is scarce. The aim of this preliminary study was to detect and identify species of Rickettsia in ticks collected from wild animals in Costa Rica.
View Article and Find Full Text PDFInt J Parasitol Parasites Wildl
December 2022
Facultad de Ciencias Básicas, Grupo de Investigación Evolución, Sistemática y Ecología Molecular (GIESEMOL), Universidad Del Magdalena, Santa Marta, Colombia.
Knowledge about ticks and Rickettsiae in Colombia is still limited and the areas of the country where studies have been conducted are scarce. In this study, ticks (Acari, Ixodidae) associated with reptiles and amphibians in San Juan de Carare, Santander department, were morphologically and molecularly identified and tested for the presence of Rickettsia. For the molecular characterization of ticks, CO1, 12S and 16S sequences were generated and compared with other sequences available in genbank.
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