Scrub typhus is an acute febrile illness caused by the bacterium *Orientia tsutsugamushi*. It is transmitted by the bite of infected larval mites (chiggers) and is endemic to the Asia-Pacific region, affecting rural populations and travelers. Characterized by fever, rash, and a distinctive eschar, early diagnosis and treatment are crucial.
No active Scrub typhus reports in Oklahoma right now.
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Scrub typhus was first described in Japan in 1899 by Dr. Hakuju Kitajima. It gained significant attention during World War II, causing considerable morbidity and mortality among military personnel operating in endemic regions of the Asia-Pacific. Its historical impact underscored the need for research into vector-borne diseases.
Scrub typhus is transmitted to humans through the bite of infected larval trombiculid mites, commonly known as chiggers. These mites acquire the bacterium *Orientia tsutsugamushi* from rodents, which serve as reservoirs, and can also pass the infection to their offspring (transovarial transmission). Human-to-human transmission does not occur.
Contagious Period: Varies by disease
Local health department information and state-specific prevention guidance
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Whether you live in Oklahoma or are traveling there, knowing the symptoms, timeline, and when to seek care helps you act quickly if exposure occurs.
Seek care if you experience severe dehydration, bloody stools, high fever, or symptoms lasting more than 3 days. Children under 5, adults over 65, and immunocompromised individuals should seek care earlier.
Emergency symptoms: Severe dehydration, inability to keep fluids down for 12 or more hours, or neurological symptoms require emergency care.
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Trusted information from leading health organizations
Official guidance from the U.S. Centers for Disease Control and Prevention
View CDC Resources →Global disease surveillance and guidelines from the World Health Organization
View WHO Resources →Disease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.
Last reviewed: 2026-07-18
No confirmed cases reported in Oklahoma yet. Here are the latest Scrub typhus reports from our global surveillance network.
This event envelope includes reports on scrub typhus cases in China. *Source: BEACON* - [View Full Report](https://beaconbio.org/en/event/?eventid=dd19c0b8-bf19-4de2-94ad-2e151b702d60)
1546 scrub typhus cases have been detected in Sundargarh, India, indicating a large and active outbreak. Scrub typhus is a serious disease requiring immediate public health attention and response to prevent further spread and manage existing cases. <!-- hash:17d316dd9d91c01040f9…
Health authorities are urging caution against tick-borne infectious diseases such as scrub typhus and severe fever with thrombocytopenia syndrome (SFTS), which occur most frequently in Korea during the months of October and November. The risk is particularly high during the harve…
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