Unit 1542: Infectious Diseases and Public Health Control

1. Overview of Infectious Diseases

1.1 Definition and Types of Infectious Diseases

• Bacterial, viral, fungal, parasitic infections

1.2 Causes of Infectious Diseases

• Pathogens: characteristics and examples

1.3 Transmission Methods

• Direct contact, indirect contact, airborne, vector-borne

1.4 Impact on Populations

• Morbidity, mortality, economic and social effects

1.5 Importance of Disease Control Measures

• Historical perspective and modern relevance

2. Epidemiology of Infectious Diseases

2.1 Introduction to Epidemiology

• Definitions and scope

2.2 Patterns of Disease Occurrence

• Incidence and prevalence

2.3 Risk Factors and Determinants

• Host, agent, environment factors

2.4 Distribution and Determinants

• Geographic, demographic, temporal distribution

3. Infectious Disease Transmission

3.1 Direct Transmission

• Person-to-person contact, droplet spread

3.2 Indirect Transmission

• Fomites, vehicles (food, water)

3.3 Airborne Transmission

• Aerosols and droplet nuclei

3.4 Vector-borne Transmission

• Biological and mechanical vectors

3.5 Environmental Factors

• Climate, sanitation, population density

4. Principles of Infection Control

4.1 Hand Hygiene

• Techniques and importance

4.2 Isolation Precautions

• Standard, contact, droplet, airborne precautions

4.3 Vaccination

• Role in prevention

4.4 Environmental Sanitation

• Cleaning, disinfection, waste management

5. Surveillance and Monitoring of Infectious Diseases

5.1 Surveillance Systems

• Passive vs active surveillance

5.2 Outbreak Investigation

• Steps and methodologies

5.3 Data Collection and Reporting

• Importance for public health response

6. Immunization and Vaccination Programs

6.1 Vaccine Development

• Types of vaccines and production

6.2 Vaccine Administration and Schedules

• Target populations and timing

6.3 Herd Immunity

• Concept and thresholds

6.4 Impact of Vaccination Programs

• Case studies and global impact

7. Antibiotic Resistance and Antimicrobial Stewardship

7.1 Mechanisms of Antibiotic Resistance

• Genetic mutations, horizontal gene transfer

7.2 Implications for Infectious Disease Control

• Treatment challenges and outcomes

7.3 Antimicrobial Stewardship

• Principles and practices in healthcare

8. Public Health Interventions for Infectious Disease Control

8.1 Outbreak Response

• Rapid identification and containment

8.2 Contact Tracing

• Process and importance

8.3 Quarantine and Isolation

• Definitions and application

8.4 Community Education

• Health promotion and behavior change

9. Global Health Security and Infectious Disease Control

9.1 International Collaboration

• Role of WHO, CDC, and other bodies

9.2 Disease Surveillance Across Borders

• Global reporting systems

9.3 Preparedness and Response Strategies

• Pandemic preparedness and response frameworks

10. Emerging Infectious Diseases

10.1 Definition and Examples

• Recent emerging diseases (e.g., COVID-19, Ebola)

10.2 Origins and Contributing Factors

• Zoonoses, environmental changes, human behavior

10.3 Challenges in Surveillance and Control

• Detection, response limitations

10.4 Potential Public Health Impact

• Global health implications and future outlook