Spotted Fever Group Rickettsia Infecting Ticks (Acari: Ixodidae) in the State of Santa Catarina, Brazil
926 Mem Inst Oswaldo Cruz, Rio de Janeiro, Vol. 106(8): 926-930, December 2011 Spotted fever group Rickettsia infecting ticks (Acari: Ixodidae) in the state of Santa Catarina, Brazil Alessandra Pereira Medeiros1, Antonio Pereira de Souza1, Anderson Barbosa de Moura1, Marcia Sangaletti Lavina1, Valdomiro Bellato1, Amélia Aparecida Sartor1, Fernanda Aparecida Nieri-Bastos2, Leonardo José Richtzenhain2, Marcelo Bahia Labruna2/+ 1Departamento de Medicina Veterinária, Centro de Ciências Agroveterinárias, Universidade do Estado de Santa Catarina, Lages, SC, Brasil 2Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Orlando Marques de Paiva 87, 05508-270 São Paulo, SP, Brasil During 2006-2008, a total of 260 adult ticks were collected from domestic and wild animals in different regions of the state of Santa Catarina (SC), Brazil, including areas where human cases of Brazilian spotted fever have been reported. Collected ticks belonging to nine species (Amblyomma aureolatum, Amblyomma cajennense, Ambly- omma dubitatum, Amblyomma longirostre, Amblyomma ovale, Amblyomma tigrinum, Dermacentor nitens, Rhipi- cephalus microplus and Rhipicephalus sanguineus) were tested by polymerase chain reaction (PCR) for rickettsial infection. Overall, eight (3.1%) ticks were found to be infected with Rickettsia species. After sequencing the PCR products, we determined that the sequences generated from three A. aureolatum, one A. ovale and one R. sanguineus from the municipality of Blumenau, one A. ovale from the municipality of Águas Mornas and one A. ovale from the municipality of Urussanga were identical to the corresponding partial rickettsial ompA gene sequence of Rickettsia parkeri strain Atlantic rainforest. The sequence generated from one A.
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