Tropical Medicine and Health
Online ISSN : 1349-4147
Print ISSN : 1348-8945
ISSN-L : 1348-8945
Original Papers
Questing Amblyomma mixtum and Haemaphysalis juxtakochi (Acari: Ixodidae) Infected with Candidatus “Rickettsia amblyommii” from the Natural Environment in Panama Canal Basin, Panama
Angélica M. Castro D.Gleidys G. García S.Karla Dzul-RosadoAna AguilarJuan CastilloAmanda GabsterDiomedes TrejosJorge Zavala-CastroSergio E. Bermúdez C.
Author information

2015 Volume 43 Issue 4 Pages 217-222


This work emphasizes the detection of Candidatus “Rickettsia amblyommii” in questing Haemaphysalis juxtakochi and Amblyomma mixtum. From February 2009 to December 2012, questing ticks were collected from the vegetation and leaf-litter of four protected forests and two grassy areas around the Panama Canal basin. DNA was extracted from Amblyomma mixtum, Amblyomma naponense, Amblyomma oblongoguttatum, Amblyomma pecarium, Amblyomma tapirellum, Haemaphysalis juxtakochi, and unidentified immature Amblyomma. Specific primers of citrate synthase gene gltA were used to detect and identify the rickettsiae. Amplicons with the expected band size were purified and sequenced. DNA of C. “R. amblyommii” was found in A. mixtum, H. juxtakochi and Amblyomma immatures. To our knowledge, these finding represent the first report of C. “R. amblyommii” in free-living ticks in the wilderness of Central America.

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© 2015 Japanese Society of Tropical Medicine
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