Emergency Central is a collection of disease, drug, and test information including 5-Minute Emergency Medicine Consult, Davis’s Drug, McGraw-Hill Medical’s Diagnosaurus®, Pocket Guide to Diagnostic Tests, and MEDLINE Journals created for emergency medicine professionals. Explore these free sample topics:
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- Most common tick-borne illness in North America
- Endemic in Northeast, Upper Midwest, and northwestern California
- Peak April–November; 80–90% in summer months
- Spirochete Borrelia burgdorferi introduced by Ixodes tick:
- Ixodes dammini (deer tick) most common
- <50% of patients recall tick bite.
- Pathogenesis—combination of:
- Organism-induced local inflammation
- Cytokine release
- No person-to-person transmission
- Borrelia miyamotoi, a spirochete related to B. burgdorferi, has recently been described as causing disease similar to Lyme disease.