Table 2. IFA reactivity of coyote and opossum serum samples to SFGR.
| No. Animal | Sites | Antigens slides | Putative pathogen c | |
|---|---|---|---|---|
| R. rickettsii a | R. amblyommii a | |||
| Coyote 4 | Arraiján | 2048 | 512 | SFGR |
| Opossum 2 | Capira | 512 | 256 | SFGR |
| Opossum 5 | Capira | - b | 256 | C. R. amblyommii |
| Opossum 7 | Capira | 512 | 512 | SFGR |
| Opossum 9 | Capira | - b | 64 | SFGR |
| Opossum 10 | Capira | - b | 512 | C. R. amblyommii |
| Opossum 11 | Capira | 128 | 512 | SFGR |
| Opossum 14 | Capira | - b | 256 | C. R. amblyommii |
| Opossum 18 | Capira | 128 | 1024 | C. R. amblyommii |
| Opossum 19 | Capira | 64 | 64 | SFGR |
| Opossum 22 | Capira | 128 | 1024 | C. R. amblyommii |
| Opossum 27 | Capira | 64 | 128 | SFGR |
| Opossum 28 | Capira | 64 | 64 | SFGR |
| Opossum 33 | Capira | 64 | 1024 | C. R. amblyommii |
| Opossum 35 | Capira | - b | 64 | SFGR |
| Opossum 37 | Capira | 128 | 1024 | C. R. amblyommii |
| Opossum 43 | Capira | 128 | 128 | SFGR |
| Opossum 46 | Capira | 64 | 128 | SFGR |
| Opossum 49 | Capira | 64 | 1024 | C. R. amblyommii |
| Opossum 50 | Gamboa | 128 | 64 | SFGR |
| Opossum 51 | Gamboa | 64 | - b | SFGR |
| Opossum 53 | Gamboa | 128 | 1024 | C. R. amblyommii |
| Opossum 55 | Gamboa | 64 | 64 | SFGR |
| Opossum 58 | Gamboa | 128 | 128 | SFGR |
| Opossum 59 | Gamboa | 256 | 1024 | C. R. amblyommii |
| Opossum 60 | Gamboa | - b | 512 | C. R. amblyommii |
| Opossum 61 | Gamboa | 64 | 1024 | C. R. amblyommii |
| Opossum 62 | Gamboa | 256 | 256 | SFGR |
a Titer was defnied as the inverse of the greatest serum sample dilution.
b (-) indicates that the serum sample was unreactive to the antigens used in the assay.
c The SGRF designation indicates that the putative species causing infection was indistinguishable in 16 animals.