Volume 8, Number 6—June 2002
Research
Geographic Association of Rickettsia felis-Infected Opossums with Human Murine Typhus, Texas
Ardys Boostrom*, Magda S. Beier†, Jackie A. Macaluso†, Kevin R. Macaluso†, Daniel Sprenger*, Jack Hayes‡, Suzan Radulovic†, and Abdu F. Azad†
Table 2
Seroprevalence of Rickettsia typhi and R. felis in 149 opossums collected in Corpus Christi, Texas, June 1998a
| Opossum serum samples | Serologic assays |
|
|---|---|---|
| Positive/total (%) |
||
| R. typhi | R. felis | |
| EIA |
38/149 (25) |
N.D. |
| IFAc | 10/125 (8) | 28/125 (22) |
a EIA, enzyme-linked immunoassay (Integrated Diagnostics, Inc., Baltimore, MD); N.D., not done; IFA, indirect immunofluorescence antibody assay.
c IFA with Ctenocephalides felis (FleaData R. felis-infected colony) midgut smears and R. typhi (Wilmington strain) as antigens at >1:128 titer.
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