II. Pathophysiology
III. Pathophysiology: Diseases transmitted by the Deer Tick
- Lyme Disease (Borrelia Burgdorferi)
- Human Babesiosis (Babesia Microti)
-
Human Granulocytic Anaplasmosis (HGA, Anaplasma phagocytophila)
- Previously known as: Human Granulocytic Ehrlichiosis (Ehrilichia phagocytophila)
IV. Differential Diagnosis
- American Dog Tick (Dermacentor variabilis)
- Twice the size of Deer Ticks
- Not associated with Lyme Disease
- Associated with Babesiosis
V. Management: Deer Tick Bite
- Prompt Tick Removal
- See Tick Removal
- Borrelia Burgdorferi infection transmission 1% at under 24 hours
- Borrelia Burgdorferi infection transmission 20% at over 72 hours
- Observe for Tick Borne Illness for 30 days after bite
- Erythema Migrans (Lyme Disease)
- If fever occurs, consider additional conditions
- Babesiosis
- HGA (previously known as Ehrlichiosis)
- Antibiotic Prophylaxis After Known Deer Tick Bite
- Routine prophylaxis is not recommended outside of Lyme Disease endemic areas
- Following known deer Tick Bite in endemic area
- Early Lyme DiseaseIncidence: 1.2%
- Antibiotics after deer Tick Bite in endemic area
- Doxycycline
- Dose within 72 hours of Tick Bite
- Adults: 200 mg orally for one dose
- Child >8 years: 4 mg/kg (max: 200 mg) orally for one dose
- Efficacy in preventing Lyme Disease: 87%
- References
- Dose within 72 hours of Tick Bite
- No other Antibiotic is indicated in prophylaxis
- Prior study showed some efficacy with Amoxicillin
- Doxycycline
VI. Prevention
VII. Resources
- CDC Lyme Disease
- Iowa State Deer Tick Home Page
Images: Related links to external sites (from Bing)
Related Studies
Concepts | Eukaryote (T204) |
SnomedCT | 39437005, 76387006 |
English | eastern deer tick, Ixodes dammini, deer tick, deer ticks, ixodes dammini, Ixodes dammini (organism), Eastern deer tick, Northern deer tick |
Spanish | pulga del ciervo oriental, Ixodes dammini (organismo), Ixodes dammini, garrapata de patas negras, garrapata de los ciervos |
Ontology: Ixodes scapularis (C0282510)
Concepts | Eukaryote (T204) |
MSH | D018884 |
SnomedCT | 76387006 |
LNC | LA19250-2 |
Portuguese | Ixodes scapularis, Carrapato do Veado, Ixodes dammini, Carrapato de Patas Pretas |
French | Ixodes scapularis, Tique à pattes noires, Tique du daim, Ixodes dammini, Tique du chevreuil |
German | Ixodes scapularis, Schwarzbeiniger Holzbock |
English | Ixodes scapulari, scapulari, Ixodes, Black legged Tick, Black-legged Ticks, Ticks, Black-legged, scapularis, Ixodes, Tick, Black-legged, Deer Ticks, Ixodes dammini, Tick, Deer, Ticks, Deer, damminus, Ixodes, Deer Tick, Ixodes damminus, dammini, Ixodes, Ixodes scapularis, ixodes scapularis, black legged ticks, Ixodes scapularis Say, 1821, deer tick, Black-legged Tick, blacklegged tick, shoulder tick, Ixodes scapularis (organism), black legged tick, Black-legged tick |
Spanish | Garrapata del Venado, Ixodes dammini, Ixodes scapularis (organismo), Ixodes scapularis, Garrapata de Piernas Negras |
Norwegian | Ixodes scapularis |
Dutch | Ixodes scapularis, Hertenteek |
Ontology: Ixodes pacificus (C0323408)
Concepts | Eukaryote (T204) |
SnomedCT | 592002 |
English | Ixodes pacificus Cooley & Kohls, 1943, California black legged tick, Ixodes pacificus, Ixodes pacificus (organism) |
Spanish | Ixodes pacificus (organismo), Ixodes pacificus |