TABLE 3.
Organisms involved in pyothorax in cats and dogs.
| Organism | Cat (n = 29) | Dog (n = 60) |
|---|---|---|
| Aerobes | 19/29 (66%) | 36/60 (60%) |
| Pasteurella spp. | 11 | 6 |
| Actinomyces sp. | 7 | 13 |
| Streptococcus spp. | 1 | 8 (biotype 3 in 5 cases) |
| Staphylococcus spp. | 2 | 7 (pseudintermedius in 4, aureus in 1) |
| Escherichia coli | 9 | |
| Enterobacter sp. | 2 | 1 |
| Corynebacterium sp. | 2 | |
| Anaerobes | 23/29 (79%) | 27/60 (45%) |
| Bacteroides/Prevotella sp. | 14 | 15 |
| Fusobacterium sp. | 13 | 16 |
| Peptostreptococcus sp. | 10 | 11 |
| Porphyromonas sp. | 3 | 4 |
| Mycoplasma | 0/3 | 0/1 |