Bartonella

Headline
Etiology Classically from cat bite/scratch. Facultative intracellular bacterium.
Epidemiology
Clinical presentation Cat scratch disease: Papular/pustular lesion 3-10 days after exposure, RUQ pain (liver involvement), painless acute vision loss
Trench fever: retro-orbital headache, macpap rash
Oroya fever: hepatosplenomegaly, bony pain, regional lymphadenopathy
Complications:
Pathogenesis
Diagnostic investigations Blood culture and serology
Management Infective endocarditis: ceftriaxone/metronidazole/gentamicin
Trench fever: doxy/gentamicin
Prevention Wash hands after petting cats especially if immunocompromised...
Vet r/v to treat bartonellosis in pet cats
Sandflies - insect repellent
Lice - Household hygiene