The characterisation of human pathogenic Orientia spp. in Leptotrombidium (and other) mite vectors transmitting scrub typhus is a 'hot topic'. Many open questions remain regarding the transmission of Orientia to humans, and the vertical maintenance within the vectors.

Unresolved entomological issues include:

In collaboration with the Faculty of Tropical Medicine, Mahidol University, we are currently collecting rodents and characterizing the vector species with the Orientia strains they harbor across various study sites of high scrub typhus endemicity, and strain isolates will feed into genome sequencing projects.

Field studies involve capturing rodents and collecting their ectoparasites, both in regions where patients acquired scrub or murine typhus and in 'unchartered territories'