| a. | Malaria | b. | AIDS | 
| c. | Chikungunya | d. | Hepatitis-B | 
| 1. | Chikungunya | - | Sharing tobacco smoke | 
| 2. | Amoebiasis | - | Contaminated food and water | 
| 3. | AIDS | - | Artificial insemination | 
| 4. | Malaria | - | Bite of an infected female Anopheles mosquito | 
| Statement A: | The use of vaccines and immunisation programmes have enabled us to completely eradicate small pox. | 
| Statement B: | Vaccines are available for diphtheria and polio. | 
| 1. | Both statements A and B are correct | 
| 2. | Both statements A and B are incorrect | 
| 3. | Only statement A is correct | 
| 4. | Only statement B is correct | 
| a. | Skin | 
| b. | Macrophages and T-helper cells | 
| c. | HCI in stomach | 
| d. | Secretion of lacrimal glands |