Screening and immunization are essential public health practices aimed at preventing diseases. Screening involves testing individuals for specific health conditions, such as high blood pressure or diabetes, to identify issues early when they are more manageable. Regular screenings can lead to timely interventions and better health outcomes. Immunization, on the other hand, involves administering vaccines to protect individuals from infectious diseases like measles or influenza. Vaccines stimulate the immune system to recognize and fight off pathogens, reducing the risk of illness. Together, screening and immunization play a crucial role in maintaining community health and preventing outbreaks.