, the etiologic agent of scrub typhus, which is prevalent in Southeast Asia although not thought to be common in Bangkok.
To the Editor: Pulmonary involvement is a well-documented complication of scrub typhus caused by Orientia tsutsugamushi
Scrub typhus is a vector-borne, acute febrile illness caused by Orientia tsutsugamushi
, an obligate intracellular, gram-negative bacterium.
Peripheral blood smear showed no evidence of malaria, and antibody titer against Orientia tsutsugamushi
Among a panel of diagnostic PCRs, the CSF sample specimen tested positive for genus-specific 17-kDa-Rickettsia quantitative PCR, but was negative for Orientia tsutsugamushi
between acute-phase (128) and convalescent-phase (512) serum samples collected 18 days apart.
In Japan, rickettsioses such as Japanese spotted fever and scrub typhus, caused by Rickettsia japonica and Orientia tsutsugamushi
, respectively, occur frequently.
The bacteria responsible for scrub typhus is Orientia tsutsugamushi
, which is no longer included in the genus Rickettsia, but Dr.
Survival and Growth of Orientia tsutsugamushi
in Conventional Hemocultures
1] The causative organism is Orientia tsutsugamushi
, a gram negative alpha proteobacterium.
According to the company, the DPP Fever Panel Assay will include a quality control and nine tests aimed at parasitic, viral and bacterial pathogens commonly responsible for fever symptoms in the Asia Pacific region, including malaria (four Plasmodium species, using pLDH and HRP2), dengue virus, Zika virus, chikungunya virus, leptospirosis, Rickettsia typhi, Burkholderia pseudomallei, and Orientia tsutsugamushi
For instance, in the South Pacific, Oceania, and Asia trombiculid mites of the genus Leptotrombidium are known to be vectors of tsutsugamushi
, also known as scrub typhus.