Kathryn DoornbosChalao SumrandeeToon Ruang-AreerateVisut BaimaiWachareeporn TrinachartvanitArunee AhantarigMahidol UniversityArmed Forces Research Institute of Medical Sciences, Thailand2018-10-192018-10-192013-01-01Journal of Medical Entomology. Vol.50, No.1 (2013), 217-220002225852-s2.0-84872739384https://repository.li.mahidol.ac.th/handle/20.500.14594/31111An engorged female Amblyomma helvolum Koch tick was removed from an adult Varanus salvator Laurenti lizard during field collection in Thailand. After using polymerase chain reaction to amplify three genes (16S rDNA, gltA, and OmpA), we discovered the presence of a Rickettsia sp. of the Spotted Fever Group. Phylogenetic analysis revealed that this Rickettsia sp. is closely related to Rickettsia raoultii Mediannikov. Therefore, we report herein for the first time the detection of a novel Spotted Fever Group Rickettsia in an Amblyomma helvolum from a Varanus salvator in Thailand. © 2013 Entomological Society of America.Mahidol UniversityAgricultural and Biological SciencesImmunology and MicrobiologyMedicineVeterinaryArticleSCOPUS10.1603/ME12010