Various Presentations of Scrub Typhus: A Case Series

Area of Science:

• Infectious Diseases
• Microbiology
• Epidemiology

Background:

• Scrub typhus is an infectious disease caused by Orientia tsutsugamushi, a Gram-negative coccobacillus.
• The disease is prevalent in the Asia-Pacific region and presents with varied symptoms, including the presence or absence of an eschar.

Observation:

• A surge in scrub typhus cases has been noted in the Kumaun region of northern India.
• Unusual presentations, such as limb gangrene, meningoencephalitis, jaundice, and hematuria, were observed in four patients.
• The typical eschar mark was absent in some cases, highlighting atypical disease manifestations.

Findings:

• Orientia tsutsugamushi infection can manifest with severe and uncommon symptoms beyond the classic presentation.
• The absence of an eschar does not rule out scrub typhus, necessitating broader diagnostic considerations.
• The study highlights the variability in scrub typhus presentation, including severe complications.

Implications:

• Consider scrub typhus serology for patients with acute febrile illness unresponsive to treatment, particularly in mountainous regions.
• Early diagnosis and appropriate management of scrub typhus are essential to reduce morbidity and mortality.
• Increased awareness of atypical scrub typhus presentations is needed for timely intervention and improved patient outcomes.