Scrub Typhus Outbreak, Northern Thailand, 2006–2007

Abstract

During a scrub typhus outbreak investigation in Thailand, 4 isolates of O. tsutsugamushi were obtained and established in culture. Phylogenetic analysis based on the 56-kDa type-specific antigen gene demonstrated that the isolates fell into 4 genetic clusters, 3 of which had been previously reported and 1 that represents a new genotype.

Keywords

• scrub typhus
• Orientia tsutsugamushi
• outbreak investigation
• parasites
• mammal reservoirs
• rodents Thailand