A Tendency of the Bacterial Food-Poisoning from 1981 to 1991

From the viewpoint of the tendency by the bacterial food-poisoning from 1981 to 1991, it seems that the tendency is not relatively changed in comparison with the data before 1981. However, a few changes are appeared in pathogenic substances, preparing facilities, and serving places, respectively. Namely, the tendency to be just little decrease of the incident rate of Vibrio parahaemolyticus and Staphylococcus aureus on pathogenic substances is appeared in 10 years. Furthermore, on the preparing facilities and serving places, it seems that restaurants and caterers are characterized by the increase of the incident rate of bacterial food poisonings togather with the increases of food service industries.