a causative organism was detected in 157 ( 67 % ) of 233 previously healthy infants less than 3 months of age , who had been hospitalized for suspected sepsis : 19 ( 8 % ) had bacterial infections , 135 ( 58 % ) had viral infections , and 3 ( 1 % ) had mixed viral-bacterial infections .
C0036690
sepsis
C0004623
bacterial infections