Tick-borne Infection Flashcards
What infections are transmitted by Ixodes scapularis (“Blacklegged Tick”)?
Borrelia burgdorferi Borrelia mayonii Anaplasma phagocytophilum Borrelia miyamotoi (a form of relapsing fever) Ehrlichia muris eauclairensis Babesia microti Powassan virus
What infections are transmitted by Amblyomma americanum (“Lone Star Tick”)?
Ehrlichia chaffeensis Ehrlichia ewingii Francisella tularensis Heartland virus Bourbon virus Southern tick-associated rash illness
What infections are transmitted by Dermacentor variabilis (“American Dog Tick”)?
Francisella tularensis Rickettsia rickettsii (RMSF)
What infections are transmitted by Rhipicephalus sanguineus (“Brown Dog Tick”)?
Rickettsia rickettsii (RMSF) [Primary vector for R. rickettsii transmission in the southwestern US and along the U.S.-Mexico border]
What infections are transmitted by Ixodes cookei (“Groundhog Tick”)?
Powassan virus
What infections are transmitted by Amblyomma maculatum (“Gulf Coast Tick”)?
Rickettsia parkeri (a form of spotted fever)
What infections are transmitted by Dermacentor andersoni (“Rocky Mountain Wood Tick”)?
Rickettsia rickettsii
Colorado tick fever virus (Colorado tick fever)
Francisella tularensis
What infections are transmitted by Ornithodoros spp (“Soft Tick”)?
Borrelia hermsii Borrelia turicatae (tick-borne relapsing fever)
What infections are transmitted by Ixodes pacificus (“Western Blacklegged Tick”)?
Anaplasma phagocytophilum Borrelia burgdorferi Borrelia miyamotoi (form of relapsing fever)
What is the incubation period for Anaplasmosis?
5-14 days
What antibiotic is used to treat Anaplasmosis?
Doxycycline for 10-14 days to provide appropriate length of therapy for possible co-infection with Lyme disease.
What are the clinical manifestations of Babesiosis?
- infection can range from asymptomatic to life-threatening.
- Fevers, sweats, malaise, headache, myalgia, arthralgia, anorexia, nausea, dark urine
- Mild splenomegaly, mild hepatomegaly or jaundice
What is the incubation period for Babesiosis?
1 to 9+ weeks
Which laboratory abnormalities are associated with Babesiosis?
- Decreased hematocrit due to hemolytic anemia
- Thrombocytopenia
- Elevated SCr/BUN
- Mildly elevated hepatic transaminase values
Which treatment regimens are used for Babesiosis?
Atovaquone + Azithromycin
Clindamycin + Quinine (Standard of care for severe babesiosis - parasitemia >10% and/or organ-system dysfunction)
Treat typically for 7-10 days
