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Scrub typhus

**Scrub typhus**
*Classification & external resources*
ICD-10	A75.3
ICD-9	081.2
DiseasesDB	31715
eMedicine	derm/841 ped/2710
MeSH	D012612

Scrub typhus is a form of typhus caused by Orientia tsutsugamushi and transmitted by chiggers, which are found in areas of heavy scrub vegetation. Symptoms include fever, headache, muscle pain, cough, and gastrointestinal symptoms. More virulent strains can cause hemorrhaging and intravascular coagulation.

Additional recommended knowledge

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An early attempt to create a scrub typhus vaccine occurred in the United Kingdom in 1937 (with the Wellcome Foundation infecting around 300,000 cotton rats in a classified project called "Operation Tyburn"), but the vaccine was not used.

References

Animal Welfare Information Center Newsletter, Summer 1994, Vol. 5, no. 2

v • d • e Bacterial diseases (primarily A00-A79, 001-041,080-109)
G+/Firmicutes	Clostridium (Pseudomembranous colitis, Botulism, Tetanus, Gas gangrene) - Streptococcus A and B (Scarlet fever, Erysipelas) - Staphylococcus (Toxic shock syndrome) - Bacilli (Anthrax, Listeriosis)
G+/Actinobacteria	Mycobacterium: Tuberculosis (Ghon focus, Ghon's complex, Tuberculous meningitis, Pott's disease, Scrofula, Bazin disease, Lupus vulgaris, Miliary tuberculosis) - Leprosy - Lady Windermere syndrome - Buruli ulcer - Actinomycetales: Actinomycosis - Nocardiosis - Diphtheria - Erythrasma
G-/Spirochetal	Syphilis (Bejel) - Yaws - Pinta - Relapsing fever - Noma - Trench mouth - Lyme disease - Rat-bite fever (Sodoku) - Leptospirosis
G-/Chlamydiae	Chlamydophila (Psittacosis) - Chlamydia (Chlamydia, Lymphogranuloma venereum, Trachoma)
G-/α Proteobacteria	Rickettsioses (Typhus, Scrub typhus, Rocky Mountain spotted fever, Boutonneuse fever, Q fever, Trench fever, Rickettsialpox) - Brucellosis - Cat scratch fever Bartonellosis (Bacillary angiomatosis)
G-/β&γ Proteobacteria	Salmonella (Typhoid fever, Paratyphoid fever, Salmonellosis) - other intestinal (Cholera, Shigellosis) - Zoonotic (Bubonic plague, Tularemia, Glanders, Melioidosis, Pasteurellosis) - Other: Pertussis - Meningococcus (Meningococcemia, Waterhouse-Friderichsen syndrome) - Legionellosis - Brazilian purpuric fever - Chancroid - Donovanosis - Gonorrhea