The term 'Health' is defined in many ways. The most accurate definition of health would be:
| 1. | Health is the state of body and mind in a balanced condition | 
| 2. | Health is the reflection of a smiling face | 
| 3. | Health is a state of complete physical, mental and social well-being | 
| 4. | Health is the symbol of economic prosperity. | 
Identify the correct statement regarding typhoid fever in human beings:
| 1. | It is caused by a pathogenic protozoan Salmonella typhi | 
| 2. | The pathogen remains confined to the small intestine | 
| 3. | Widal test can confirm the infection very early in the disease | 
| 4. | Intestinal perforation and death may occur in severe cases | 
The name Mary Mallon is associated with:
| 1. | Tuberculosis | 2. | Typhoid | 
| 3. | Leprosy | 4. | Rabies | 
Rhinovirus does not affect:
| 1. | Lungs | 2. | Nose | 
| 3. | Pharynx | 4. | Larynx | 
Identify the incorrectly matched pair regarding Plasmodium, the protozoan responsible for causing malaria in humans:
| 1. | Cause of malignant tertian malaria | Plasmodium falciparum | 
| 2. | Paroxysm [clinical features] of malaria | Release of hemozoin on rupture of RBCs | 
| 3. | Fertilization during the life cycle | Gut of female anopheles | 
| 4. | Infective stage to mankind | Trophozoites | 
The occurrence of chills and fever in malaria is associated with:
| 1. | Rupture of hepatocytes during exo-erythrocytic cycle of the parasite | 
| 2. | Inoculation of the sporozoite by the mosquito bite into humans | 
| 3. | Release of haemozoin due to rupture of RBCs by the parasite | 
| 4. | Development of the adult trophozoite in the RBC | 
The sporozoites that cause infection when a female Anopheles mosquito bites a person, are found in:
1. liver of the person
2. RBCs of mosquito
3. salivary glands of the mosquito
4. gut of the mosquito
The mechanical carrier of the causative agent of amoebic dysentery is:
| 1. | A protozoan | 2. | House fly | 
| 3. | Mosquito | 4. | Rodent | 
Identify the incorrect statement regarding Entamoeba histolytica:
| 1. | Cysts of Entamoeba can survive for up to a month in soil or for up to 45 minutes under fingernails. | 
| 2. | Invasion of the intestinal lining results in bloody diarrhea. | 
| 3. | Infection remains confined to the gastrointestinal tract. | 
| 4. | Infections can sometimes last for years if there is no treatment. | 
Which of the following diseases is/are correctly matched with their modes of transmission?
| Disease/Infection | Mode of transmission | |
| I. | Ascariasis | Contaminated food and water | 
| II. | Elephantiasis | Vector-borne | 
| III. | Ringworm | Direct contact | 
Options:
| 1. | Only I and II | 2. | Only I and III | 
| 3. | Only II and III | 4. | I, II and III |