This is arguably the most critical chapter. Rajasthan exams frequently ask about the "Epidemiological Triad" and specific details of diseases prevalent in the region.
Key Focus Areas:
Concepts of Health: Definitions of health, levels of prevention (Primary, Secondary, Tertiary), and modes of transmission.
Vector-Borne Diseases: Malaria, Dengue, and Chikungunya.
Infectious Diseases: Tuberculosis (National TB Elimination Program), HIV/AIDS, and Hepatitis.
Vaccination: The Cold Chain system and contraindications for specific vaccines.
