Volume 15, Number 8—August 2009
Tick-Borne Rickettsiosis in Traveler Returning from Honduras
|Test||Titers on specific date
|May 26||Jun 10||Jul 14||Aug 25||Nov 22|
|RMSF IgG†||Positive, >1,024||Positive, >1,024||Positive, >1,024||Positive, >1,024|
|RMSF IgM†||Positive, 512||Positive, 256||Positive, 128||Positive, 256|
|R. conorii IgG†||>1,024||512||512|
|R. conorii IgM†||64||64||64|
|R. africae IgG‡||2,048||4,096|
|R. africae IgM‡||512|
|R. conorii IgG‡||2,048||4,096|
|R. conorii IgM‡||512|
|R. rickettsii IgG‡||1,024|
|R. rickettsii IgM‡||256|
*Reference titer for negative/normal result is <64. RMSF, Rocky Mountain spotted fever; Ig, immunoglobulin.
†Testing done by Focus Diagnostics, Cypress, CA, USA.
‡Testing done by Centers for Disease Control and Prevention, Atlanta, GA, USA.
Page created: September 30, 2010
Page updated: September 30, 2010
Page reviewed: September 30, 2010
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