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PCB Pharmacist Registration study materials
PCB Pharmacist Registration study resources

PCB Pharmacist Registration: Pharmaceutical Microbiology and Immunology

PCB Pharmacist Registration · Work through your exam, one topic at a time.

All guide sections

Pharmaceutical Microbiology and Immunology

Core Concepts

This domain covers microorganisms relevant to pharmacy: bacteria, fungi, viruses, and sterilization/ disinfection. Candidates must understand microbial growth (lag, log, stationary, death phases), sterility testing, preservatives, and antimicrobial resistance. Immunology includes vaccines, immune responses, and hypersensitivity reactions. Aseptic technique and cleanroom classification are also important.

Question Traps

  • Bactericidal vs. bacteriostatic: Bactericidal kills bacteria; bacteriostatic inhibits growth. The distinction matters for clinical choice.
  • Sterilization vs. disinfection: Sterilization kills all microorganisms including spores; disinfection reduces pathogens but may not kill spores.
  • Vaccine types: Live attenuated (e.g., MMR) vs. inactivated (e.g., influenza) vs. toxoid (e.g., tetanus). Live vaccines are contraindicated in immunocompromised patients.

Worked Example / Rule of Thumb

Question: Which method is used to sterilize heat-sensitive solutions? Filtration (0.22 µm membrane). Rule of thumb: “Log phase is most susceptible” – bacteria are most vulnerable to antimicrobials during active growth.