MIC203 Microbiology Lecture – Course Syllabus and Study Guide

MIC203 Microbiology Lecture – Course Syllabus and Study Guide

Course Overview

This course provides an introduction to microbiology, focusing on the structure, function, classification, and clinical significance of microorganisms. It is designed for nursing students and emphasizes the application of microbiological concepts to health care and nursing practice.

• Course Code: MIC203

• Credits: 4 units (64 hours)

• Delivery Mode: Residential and/or Blended

• Prerequisite: Admission to ADN program; completion of MIC201 Microbiology Lab

• Textbook: Microbiology: Basic and Clinical Principles by Lourdes Norman McKay (Pearson, 2nd ed.)

Course Description

This course introduces students to microbiology, including pathogenicity, taxonomy, metabolism, microbial control, and immunity. Laboratory experiences focus on culturing, staining, and classifying microorganisms. Students will develop skills in analysis, critical thinking, and application of microbiological knowledge to nursing practice.

Program and Course Learning Outcomes

Program Learning Outcomes (PLOs)

• PLO 1: Apply evidence-based practice in patient care using the Nursing Process and QSEN competencies.

• PLO 2: Provide patient-centered care based on clinical and pharmacological factors.

• PLO 3: Work in inter-professional teams and demonstrate cultural competence.

• PLO 4: Continue lifelong learning and display personal growth and commitment.

Course Learning Outcomes (CLOs)

• Describe the goals of aseptic technique and why it is important.

• Define the term microorganism and give examples of microbes studied in Microbiology.

• Outline the basic structure and scientific method and distinguish an observation from a conclusion.

• Describe the key contributors to pathogens.

• Explain the differences between prokaryotic and eukaryotic cells.

• Compare and contrast viruses and bacteria.

• Describe the scientific and epidemiological basis of disease transmission.

• Explain the differences in host immune responses and adaptive vs. innate immunity.

• Describe the methods of developing vaccines and the concept of vaccine-induced immunity.

• Discuss how DNA vaccines and recombinant vector vaccines stimulate immunity.

• Describe what is meant by antibiotic resistance and compare intrinsic vs. acquired resistance.

• Explain the ways healthcare workers and patients can reduce the emergence of antimicrobial resistance.

Major Topics and Subtopics

1. Introduction to Microbiology

Microbiology is the study of microscopic organisms, including bacteria, viruses, fungi, protozoa, and algae. It is foundational for understanding infectious diseases and their control in healthcare settings.

• Definition: Microbiology is the branch of science that deals with microorganisms and their effects on other living organisms.

• Importance: Essential for infection control, disease prevention, and understanding the role of microbes in health and disease.

• Examples: Escherichia coli (bacteria), Influenza virus (virus), Candida albicans (fungus).

2. Classification and Taxonomy of Microorganisms

Microorganisms are classified based on their structure, genetics, and biochemical properties. Taxonomy helps in identifying and categorizing microbes for diagnosis and treatment.

• Domains: Bacteria, Archaea, Eukarya

• Kingdoms: Protista, Fungi, Plantae, Animalia (for eukaryotes)

• Binomial Nomenclature: Scientific naming system using Genus and species (e.g., Staphylococcus aureus).

3. Structure and Function of Microbial Cells

Understanding the differences between prokaryotic and eukaryotic cells is crucial for identifying pathogens and selecting appropriate treatments.

• Prokaryotes: No nucleus, simple structure (e.g., bacteria, archaea)

• Eukaryotes: Nucleus present, complex organelles (e.g., fungi, protozoa)

• Viruses: Acellular, require host cells to replicate

4. Microbial Growth and Control

Microbial growth can be controlled through physical, chemical, and mechanical barriers. Understanding these methods is essential for infection prevention in clinical settings.

• Physical Barriers: Skin, mucous membranes

• Chemical Barriers: Stomach acid, lysozyme in saliva

• Mechanical Barriers: Cilia in respiratory tract, flushing action of urine

• Disinfection and Sterilization: Use of heat, chemicals, and radiation to eliminate microbes

5. Pathogenicity and Disease Transmission

Pathogenicity refers to the ability of a microorganism to cause disease. Understanding transmission routes is vital for controlling outbreaks.

• Pathogen: An organism that causes disease

• Transmission: Direct contact, airborne, vector-borne, food/water-borne

• Example: Influenza virus spreads via respiratory droplets

6. Immunity and Vaccination

The immune system protects the body from pathogens through innate and adaptive mechanisms. Vaccines stimulate immunity and prevent infectious diseases.

• Innate Immunity: Non-specific, immediate defense (e.g., skin, phagocytes)

• Adaptive Immunity: Specific, memory-based defense (e.g., antibodies, T-cells)

• Vaccines: Biological preparations that stimulate adaptive immunity

• Types of Vaccines: Live attenuated, inactivated, subunit, DNA vaccines

7. Antimicrobial Agents and Resistance

Antimicrobial agents are used to treat infections, but resistance can develop, making treatment difficult. Understanding resistance mechanisms is crucial for effective therapy.

• Antibiotics: Drugs that kill or inhibit bacteria

• Antiviral Agents: Drugs that target viruses

• Antifungal Agents: Drugs that target fungi

• Antimicrobial Resistance: The ability of microbes to withstand the effects of drugs

• Prevention: Judicious use of antibiotics, infection control practices

8. Laboratory Techniques in Microbiology

Laboratory methods are essential for identifying microorganisms and determining their susceptibility to antimicrobial agents.

• Aseptic Technique: Procedures to prevent contamination

• Staining Methods: Gram stain, acid-fast stain

• Culturing: Growing microbes on nutrient media

• Microscopy: Light and electron microscopy for visualization

Course Policies and Expectations

• Attendance: Required for all classes, labs, and clinical rotations. Excessive absences may result in withdrawal from the course.

• Make-Up Policy: Students must make up missed clinical sessions as scheduled by the faculty.

• Academic Integrity: Students are expected to adhere to the highest standards of honesty and professionalism.

Sample Table: Comparison of Prokaryotic and Eukaryotic Cells

Feature	Prokaryotic Cells	Eukaryotic Cells
Nucleus	Absent	Present
Organelles	No membrane-bound organelles	Membrane-bound organelles
Examples	Bacteria, Archaea	Fungi, Protozoa, Plants, Animals

Key Formulas and Equations

• Microbial Growth Rate:

$N_t = N_0 \times 2^n$

• Where $N_t$ = number of cells at time t, $N_0$ = initial number of cells, $n$ = number of generations

• Serial Dilution Formula:

$\text{CFU/mL} = \frac{\text{Number of Colonies} \times \text{Dilution Factor}}{\text{Volume Plated (mL)}}$

Recommended Resources

• Agency for Healthcare Research and Quality: https://www.ahrq.gov/

• Centers for Disease Control: https://www.cdc.gov/

• World Health Organization: https://www.who.int/

• National Institutes of Health: https://www.nih.gov/

Additional info: Some details, such as specific weekly topics and grading policies, were inferred from standard microbiology syllabi and the visible structure of the document.