| • | Rickettsia prowazekii – epidemic typhus |
| • | mnemonic – prowazekii is pro-war: with war, overcrowding and poverty, unsanitary conditions prevail and lice take control, harboring Rickettsia prowazekii |
| • | fever, headache, generalized pink macules that spare palms, soles, and face (vs. RMSF) |
| • | Rickettsia typhi – endemic typhus |
| • | after 6 days, the primary lesion at the site of the bite = the tache noire |
| • | presents with fever, headache, chills, myalgia |
| • | in a few days - maculopapular rash |
| • | histology = a lymphocytic vasculitis |
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