ins. A. Directions: Read the paragraph, then provide a generalization. Many, if not all, infectious diseases can be prevented by some means such as immunization, hand washing, and general cleanliness. Most people are immunized against flu, diphtheria, whooping cough, polio, and tetanus. Still other people who travel in other parts of the world need to undergo vaccination for diseases like typhoid and yellow fever. Through thorough hand washing and other good food habits may help prevent the spread of colds, flu, and food poisoning. Brushing one's teeth is another practical way to protect the teeth from cavities and gum disease. Most importantly, general cleanliness of surroundings contribute greatly in the prevention of diseases. (Castillo, K.E. (2016). Joy in Learning English 5. Vibal Group, Inc for the Department of Education)​