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 |