Volume 13, Number 2—February 2007
Letter
African Tickbite Fever in Travelers, Swaziland
Paul M. Oostvogel*
, Gerard J. van Doornum†, Russouw Ferreira‡, Jacqueline Vink*, Florence Fenollar§, and Didier Raoult§
, Gerard J. van Doornum†, Russouw Ferreira‡, Jacqueline Vink*, Florence Fenollar§, and Didier Raoult§
Table
Clinical and serologic characteristics of 12 travelers with African tickbite fever, Swaziland, 2003*
| T | Sex/ age, y | Fever/headache/ myalgia/rash | Tickbite/ eschar site/ lymph. site | Sera | Rotterdam, the Netherlands | Marseille, France | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Rickettsia conorii IgG/IgM† | R. rickettsii IgG/IgM† | R. conorii IgG/IgM† | R. africae IgG/IgM† | WB | WB ads. | |||||
| 1 | F/47 | Y/N/Y/Y | N/N/groin | A | 0/32 | 32/32 | 0/0 | 0/0 | NT | NT |
| C | >128/>128 | >128/32 | 128/0 | 128/0 | + | Ra | ||||
| 2 | M/14 | Y/Y/N/N | Y/foot/groin | A | >64/>64 | >64/>64 | 32/0 | 64/0 | + | Ra |
| C | >128/32 | >128/16 | 256/0 | 256/0 | NT | NT | ||||
| 3 | M/13 | N/N/N/N | N/N/N | A | 0/0 | 32/0 | 0/16 | 0/16 | + | NC |
| C | 0/0 | 0/0 | 0/16 | 0/16 | NT | NT | ||||
| 4 | M/10 | N/N/N/N | N/N/groin | A | >64/>64 | >64/>64 | 0/16 | 0/32 | + | Ra |
| C | >128/32 | >128/16 | 0/64 | 0/64 | NT | NT | ||||
| 5 | M/50 | Y/Y/N/Y | N/N/groin | A | 0/0 | 0/0 | 0/0 | 0/0 | NT | NT |
| C | >128/>128 | >128/32 | 64/8 | 64/8 | + | NC | ||||
| 6 | M/13 | N/N/N/N | N/N/groin | A | 0/0 | 0/0 | 0/0 | 0/0 | NT | NT |
| C | >128/16 | >128/16 | 32/16 | 32/16 | + | Ra | ||||
| 7 | M/11 | Y/N/N/N | N/N/retro. | A | 0/0 | 32/0 | 0/0 | 0/0 | NT | NT |
| C | 0/>128 | 16/32 | 0/32 | 0/32 | + | NC | ||||
| 8 | F/47 | Y/Y/Y/Y | N/mult./groin | A | 0/0 | 32/0 | 0/16 | 0/16 | + | NC |
| C | >128/16 | >128/0 | 32/8 | 32/8 | NT | NT | ||||
| 9 | M/5 | Y/N/N/N | Y/thumb/ axillary | C | NT/NT | NT/NT | 0/0 | 0/0 | Ra | NT |
| 10 | M/44 | Y/Y/Y/N | N/shoulder/ axillary | C | 32/32 | >128/>128 | 0/0 | 0/0 | + | Ra |
| 11 | F/10 | N/N/N/N | N/N/trunk | C | 0/0 | 0/0 | 0/0 | 0/0 | + | Ra |
| 12 | M/50 | N/N/N/N | N/N/N | C | 0/0 | 0/0 | 0/8 | 0/16 | + | Ra |
*T, traveler; lymph., lymphadenopathy; IgG, immunoglobulin G; WB = Western blot; WB ads., WB after cross-adsorption that removed antibodies to R. conorii; Y, yes; N, no; A, acute phase; NT, not tested; C, convalescent phase; +, positive for R. africae and R. conorii; Ra, positive for R. africae; NC, not conclusive; retro., retroauricular; mult., multiple.
†Ratio of titers.
Page created: June 29, 2010
Page updated: June 29, 2010
Page reviewed: June 29, 2010
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.