A retrospective cohort study to explore the association between clinical pharmacists' interventions and antibiotic consumption through the use of the medical electronic reports and to identify mortality and cost savings in hospital infectious disease.

The role of clinical pharmacist includes :

1. a check of suitable selection and dosing of antimicrobials according to the diagnosis, type of infection, antimicrobial cultures as possible, comorbidities of patients (renal or hepatic function, etc), adverse effect, and drug interaction with other drugs.
2. Documentation of the clinical intervention, cost-saving, adverse effect,, antimicrobial culture and antimicrobial consumption on the electronic program (CPC "clinical patient care").
3. The clinical pharmacist inspector reviews the data recorded on CPC.

Inclusion Criteria:

• All inpatient with infectious disease (disorders caused by organisms as (bacteria, viruses, fungi, or parasites).

Exclusion Criteria:

• Any other cause of hospital admission other than infectious disease.

All patients who administered antimicrobials