1. What are antibiotics? What precautions we must observe while taking antibiotics?
2. What are communicable diseases? Name the causative organism, mode of transmission and preventive measures of each of the following diseases:
D) Dengue Fever
3. Give reason
A Person suffering from cold should use
Handkerchief while sneezing
4. How do houseflies transmit diseases?
5. What is vaccination? What do vaccines contain?
Describe the working of vaccine