Page 54 - MNU-PM502- Pharmaeutical Microbiology Theoritical Book

Pharm D- Clinical Pharmacy Program Third Level Pharmaceutical Microbiology& Antimicrobials (PM 502)

• In hospitals, multidose products, once contaminated, may serve as a vehicle
of cross-contamination or cross-infection between patients

e.g. Zinc-based products packed in large stock-pots and
used in the treatment of bed-sores patients may become

contaminated during use with organisms such as
Staphylococcus aureus.

• In hospitals, nursing staff are potential source of
contamination in hospitals

• During the course of their work, nurses ‘hands become

contaminated with opportunist pathogens

• contaminants may subsequently be transferred to
medicaments during administration.

Environment

• Small numbers of airborne contaminants may settle out in
products left open to the atmosphere.

• Such contaminants generally have simple nutritional

requirements

• This problem is encountered particularly when the product is
stored in a warm place.

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