Volume 9, Number 9—September 2003
Dispatch
Tick-borne Relapsing Fever Caused by Borrelia hermsii, Montana
Table
Case no. | Patient age (y)a | Sex | Onset | Signs/Symptoms | Initial blood smear | Final laboratory results |
---|---|---|---|---|---|---|
1 |
54- |
M |
July 30b |
38.9°C–39.4°C temperature, rash, headache, myalgia, arathralgia |
Spirochete negative |
Seropositive by IFAc and Western blot |
2 |
5 |
F |
August 10 |
40.6°C temperature., vomiting, diarrhea, headache, myalgia |
Spirochete positive |
Mouse inoculation positive; isolation of B. hermsii |
3 |
43 |
M |
August 16 |
Fever, headache, myalgia, arthralgia |
Spirochete positive |
Mouse inoculation positive; isolation of B. hermsii |
4 |
43 |
F |
August 30 |
38.9°C–39.4°C temperature, vomiting, diarrhea, headache |
Spirochete negative |
Mouse inoculation negative; no isolation |
5 | 13 | M | August 11 | 40.6°C temperataure, vomiting, headache | Spirochete positive | Mouse inoculation and isolation not attempted |
aConfirmed cases with demonstration of spirochetes in blood; presumptive cases with appropriate manifestations but no spirochetes detected.
bThis patient relapsed on August 6.
cIFA, immunofluoresence assay
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Page updated: January 03, 2011
Page reviewed: January 03, 2011
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