during the first seven years , in which only hygienic , organizational , and surgical measures were used to prevent infection , the rate of patients with postoperative infections decreased from 28.2 % to 11.9 % ( -58 % ) , while the rate of feverish standard morbidity decreased from 27.2 % to 9.7 % ( -64 % ) .
C0009450
infection
C0392618
postoperative infections