5 documents found, page 1 of 1
Molecular Evidence of Rickettsia felis in Phereoeca sp.
Araújo,Fernanda Sales de; Barcelos,Rafael Mazioli; Mendes,Tiago Antônio de Oliveira; Mafra,CláudioAbstract Rickettsia felis is an obligate intracellular bacterium capable of infecting ticks, fleas, lice, and other arthropods. This bacterium is classified as a member of the Transitional Group (TRG) Rickettsia. It is known the evidence of R. felis mutualistic and obligatory relationship with some eukaryote organisms. However, there aren’t scientific accounts of R. felis and moths of the order Lepidoptera asso...
Morphological and molecular diagnosis of Pseudoterranova decipiens (sensu stric...
Mafra,Cláudio; Mantovani,Cynthia; Borges,Juliana Novo; Barcelos,Rafael Mazioli; Santos,Cláudia PortesAn anisakid nematode larva found in cod sold in the state of Minas Gerais, Brazil was studied by light and scanning electron microscopy and by a molecular approach. Mitochondrial cytochrome c-oxidase subunit 2 (mtDNA cox-2), 28S rRNA and ITS1, 5.8S and ITS2 regions were amplified using the polymerase chain reaction and sequenced to evaluate the phylogenetic relationships of the larva. The genetic profile confir...
Evidence of Borrelia in wild and domestic mammals from the state of Minas Gerai...
Montandon,Carlos Emmanuel; Yoshinari,Natalino Hajime; Milagres,Bruno Silva; Mazioli,Rafael; Gomes,Gabriel Guimarães; Moreira,Higo NasserThe main of the study was to evaluate the presence of Borrelia burgdorferi infection in domestic and wild vertebrates and ectoparasites in endemic areas from the state of Minas Gerais, Brazil. A total of 445 serum samples were examined by ELISA, which used the Borrelia burgdorferi strain G39/40 U.S. source and 3,821 tick samples were tested by polymerase chain reaction (PCR). B. burgdorferi antibodies were foun...
Amblyomma nodosum (Acari: Ixodidae) parasitizing a domestic dog in Colatina, Es...
Mazioli,Rafael; Szabó,Matias; Mafra,CláudioOn 27 Jan 2011 an adult Amblyomma nodosum tick was found attached to a domestic dog from the municipality of Colatina, state of Espírito Santo, Brazil. This is the first report of this tick species in this state and the second time it has been reported parasitizing a domestic dog in the country. For the time being, this finding should be regarded as incidental. However, more in-depth research into the hosts and...
Clinical and laboratorial evidence of Rickettsia felis infections in Latin America
Galvão,Márcio Antônio Moreira; Mafra,Cláudio; Chamone,Chequer Buffe; Calic,Simone Berger; Zavala-Velazquez,Jorge E.; Walker,David HughesAfter the discovery and initial characterization of Rickettsia felis in 1992 by Azad and cols, and the subsequent first description of a human case of infection in 1994, there have been two communications of human rickettsiosis cases caused by Rickettsia felis in Latin America. The first one was published in 2000 by Zavala-Velazquez and cols in Mexico. In 2001 Raoult and cols described the occurrence of two hum...