Tick-borne relapsing fever (TBRF) and Colorado tick fever (CTF) is discussed in this chapter.
TBRF is a vector-borne infection characterized by recurrent fevers caused by several spec...
Both TBRF and CTF most commonly present with high fever, headache, myalgia, and chills. A thorough history documenting recent travel and a description of the fever curve are necessary...
TBRF
The treatment of choice is oral tetracycline/doxycycline for 7 to 10 days. Children <8 years of age and pregnant women should receive erythromycin or penicillin.
Newer macrol...
Patients should avoid donating blood for 6 months after onset of illness.
Generally responds rapidly to appropriate antibiotic therapy without sequelae
Mor...
Brackney MM, Marfin AA, Staples JE, et al. Epidemiology of Colorado tick fever in Montana, Utah, and Wyoming, 1995–2003. Vector Borne Zoonotic Dis. 2010;10(4):381–385. [View A...
087.1 Relapsing fever, tick-borne
066.1 Tick-borne fever
A68.1 Tick-borne relapsing fever
A93.2 Colorado tick fever
10301003 Tick-borne relapsing fever
6452009 Colorado tick fever (dis...
Q: When should a clinician suspect tick fever?
A: A history of recurring or relapsing fever in the appropriate epidemiologic setting (such as travel history to the western parts of the United State...
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Figure 289.3. Adult female (<italic>right</bold>) and male (<italic>left</bold>) deer ticks. Note the long mouthparts of the female and her light coloring posteriorly. Males rarely attach to human hosts, and then only lightly.
Figure 289.3. Adult female (<italic>right</bold>) and male (<italic>left</bold>) deer ticks. Note the long mouthpa...
<bold>FIGURE 25-3</bold> <bold>Deer ticks at the larval, nymphal, and adult stages.</bold> Larval, nymphal, and adult ticks are approximately 0.5, 1, and 3 mm long (excluding legs), respectively. A sewing needle in the upper-left corner of the picture provides scale. (Photo provided by the American Lyme Disease Foundation.)
<bold>FIGURE 25-3</bold> <bold>Deer ticks at the larval, nymphal, and adult stages.</bold> Larval, nymphal, and ad...
FIG. 6.12. Tick bite. Typical appearance of an engorged tick.