What is signet ring stage?

How are viral diseases classified?

Name two methods by which mosquito population can be controlled to prevent malaria

Name the fungal organisms which cause skin infections.

Write a few lines about filarial worm.

Define hygiene as given by WHO.

What is morphine?

How does tobacco affect oxygen transport in the blood?

Mention any 3 effects of alcohol in the during adolescence.

What is irritable bowel syndrome?

What is drug abus?

Write the name of causative agent, infection site, mode of transmission and any two symptoms of Chikungunya

Draw and label the parts of Entamoeba histolytica.

Give a brief account of Kala-azar.

Comment on Malaria vaccine.