What is the disease name, according to description below :

- Inflammation of the lining of abdominal cavity
- Before antibiotics, people would die from (...) if an inflamed appendix burst
- Symptoms include: Tender Abdomen, Rebound Pain (Pain when manual pressure released from examining the abdomen), Board-Like Rigidity of Abdominal Muscles, No Bowel Sounds (Gurgles)
- The peritoneal membrane is very sensitive to exposure to foreign substances
- Contact with blood, bile, urine, or pus will cause peritoneal signs