RT Book, Section A1 Clark, Eva A1 Akamine, Christine A1 Shandera, Wayne X. A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1184168192 T1 Other Rickettsial & Rickettsial-Like Diseases T2 Current Medical Diagnosis & Treatment 2022 YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264269389 LK accessmedicine.mhmedical.com/content.aspx?aid=1184168192 RD 2024/03/28 AB ESSENTIALS OF DIAGNOSISInfection of monocyte or granulocyte by tick-borne gram-negative bacteria.Nine-day incubation period; clinical disease ranges from asymptomatic to life-threatening.Malaise, nausea, fever, and headaches.US cases of ehrlichiosis typically occur in men aged 60–69 years; US cases of anaplasmosis typically occur in men aged over 40 years; both occur in the summer, with different geographic areas of prevalence.Excellent response to therapy with tetracyclines.