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Emerging rickettsioses of the Thai-Myanmar border
Philippe Parola1, R Scott Miller, Philip McDaniel
1Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand.
Abstract:
To investigate the presence of rickettsioses in rural residents of the central Thai-Myanmar border, we tested the blood of 46 patients with fever. Four patients had murine typhus, three patients had scrub typhus, and eight patients had spotted fever group rickettsioses, including the first case of Rickettsia felis infection reported in Asia.
Insights
This study investigated rickettsioses in Thai-Myanmar border residents. Murine typhus, scrub typhus, and spotted fever group rickettsioses were detected, including a novel Rickettsia felis case in Asia.
Area of Science:
- Infectious Diseases
- Tropical Medicine
- Microbiology
Background:
- Rickettsioses are a group of tick- and flea-borne bacterial diseases.
- Limited data exists on rickettsial infections along the Thai-Myanmar border.
Purpose of the Study:
- To determine the prevalence of rickettsioses in febrile patients residing in the central Thai-Myanmar border region.
- To identify specific rickettsial pathogens circulating in this population.
Main Methods:
- Blood samples were collected from 46 patients presenting with fever.
- Diagnostic methods were employed to detect various rickettsial infections.
Main Results:
- Four cases of murine typhus were identified.
- Three cases of scrub typhus were diagnosed.
- Eight cases of spotted fever group rickettsioses were confirmed.
- The first documented case of Rickettsia felis infection in Asia was reported.
Conclusions:
- Rickettsial infections are present in the studied population.
- The findings highlight the need for increased awareness and diagnostics for rickettsioses in this region.
- The identification of Rickettsia felis expands the known geographic distribution of this pathogen.