Volume 13, Number 11—November 2007
Letter
Rickettsia felis in Chile
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.