| Effective | Percentage | |
Amebic serology | Positive | 24 | 80 |
negative | 6 | 20 | |
Result of cytobacteriological examination of pus | Escherichia coli | 6 | 20 |
Sterile | 7 | 23.30 | |
Not done | 17 | 56.70 | |
Total | 30 | 100 |