Abstract: The present invention provides the method for the production of the egg containing anti-pathogenic bacteria specific antibodies (IgY) preventing gastritis, diarrhea, and food poisoning by immunizing young hens with antigen proteins of E. coli causing enteritis, Helicobacter pylori causing gastritis, and Salmonella enteritidis and Salmonella typhimurium, causing food poisoning, simultaneously. This invention also relates to composition containing the specific IgY antibodies described above and the foodstuff such as the yogurt and ice cream containing the anti-pathogenic IgY.