Volume 13, Number 11—November 2007
Letter
Rickettsia felis in Chile
Marcelo B. Labruna*
, Maria Ogrzewalska*, Jonas Moraes-Filho*, Paulina Lepe†, Jose Luis Gallegos†, and Javier López†
, Maria Ogrzewalska*, Jonas Moraes-Filho*, Paulina Lepe†, Jose Luis Gallegos†, and Javier López†Table
End-point titers of indirect immunofluorescence assay (IFA) for 6 Rickettsia species in cats from a household in Santiago, Chile*
| Cat no. | IFA titers for Rickettsia antigens |
PAIHR | |||||
|---|---|---|---|---|---|---|---|
| R. felis | R. rhipicephali | R. bellii | R. parkeri | R. rickettsii | R. amblyommii | ||
| 1 | 128 | – | – | – | – | – | R. felis |
| 2 | 256 | 256 | 128 | – | – | – | |
| 3 | 512 | 128 | 64 | – | – | – | R. felis |
| 5 | 64 | – | – | – | – | – | |
| 6 | 64 | 64 | – | – | – | – | |
| 7 | 64 | – | – | – | – | – | |
| 8 | 128 | – | – | – | – | – | R. felis |
| 9 | 64 | – | – | – | – | – | |
| 10 | 64 | – | – | – | – | – | |
| 11 | 128 | – | – | – | – | – | R. felis |
| 12 | 64 | – | – | – | – | – | |
| 14 | 128 | – | 64 | 128 | – | 128 | |
| 15 | 64 | – | – | – | – | – | |
| 19 | 64 | – | – | – | – | – | |
| 21 | 128 | 64 | 128 | 128 | 128 | – | |
| 22 | 64 | 64 | – | 64 | 64 | – | |
*PAIHR, possible antigen involved in a homologous reaction (serum showing for a Rickettsia species titer at least 4-fold higher than that observed for any other Ricketttsia species was considered homologous to the first Rickettsia species); –, nonreactive at titer >64.
