Thread by @IUIDfellowship

#idboardreview 30 M chef, 2 🐈4 🐀 pets w/close contact, no bites/scratches present w/ diffuse maculopapular, non-blanching slightly palpable rash some petechiae involves palms/soles. Tender swollen R knee, L Ankle/wrist. #IdMedEd #IDTwitter #medEd

Rat-bite fever is a bacterial infection caused by #Streptobacillus moniliformis, which is more common in North America, and Spirillum minus, which is more common in Asia journals.asm.org/doi/10.1128/CM…

Exposure to #Streptobacillus #moniliformis may involve contact with rat’s saliva or excreta; bite is not necessary to transmit infection. Groups at higher risk: exposure to rats/rodents, snake owners, pet store workers, lab tech, inhabitants of crowded urban dwellings. IP 10d

#Ratbitefever is a systemic illness with several non-specific features, including fever, rigors, migratory polyarthralgia and rash. The rash may involve palms and soles and may be maculopapular, petechial, or purpuric; hemorrhagic pustules may be seen

#Streptobacillus moniliformis highly pleomorphic, filamentous, gram negative rod. Isolation of in cultures of blood or synovial fluid is gold standard for diagnosis but challenging. Sodium polyanethol sulfonate in standard BC media can inhibit bacterial growth of S. moniliformis