Abstract
1. From gastric and intestinal contents at the gastrojejunostomy B. coli and other organisms are cultured in all 66 cases of gastric cancer, and in 60% of 30 gastric ulcer cases, while the kind and quantity of examined organisms in ulcer was less than in cancer.
2. Although the percentage of positive cultures from the mucous suture was almost the same as that of the gastric and intestinal contents, the positive percentage from the serous suture decreased remarkably both in cancer (positive 52%) and in ulcer (positive 13%).
3. Duodenal stumps after serous suture were steril in all 29 ulcer cases and in 95% of 42 cancer cases. Even in positive cases of cancer the quantity of organisms was very few.
4. The microflora contaminating of peritoneum is relatively high at the gastroenterostomy during gastric resection-procedure, but not so high as to produce peritonitis, when the operation was performed carefully.
