This document discusses the prevention and control of common communicable diseases. It provides information on influenza, bronchitis, pneumonia, tuberculosis, dengue, malaria, and acute respiratory infections. For each disease, it outlines the causative agent and describes everyday steps that can be taken to prevent the spread of germs and protect oneself, such as washing hands regularly, coughing into a tissue, getting vaccinated, avoiding contact with sick people, and eliminating standing water where mosquitoes can breed. The document emphasizes that prevention is better than cure and promotes maintaining good hygiene habits to stop the transmission of infectious diseases.