The signs and symptoms of a disease depend on the tissue or organ which the microbe targets. Explain with examples.

A doctor/nurse/health-worker is exposed to more sick people than others in the community. Find out how she/he avoids getting sick herself.

Conduct A survey in your neighbourhood to find out what the three most common diseases are. Suggest three steps that could be taken by your local authorities to bring down the incidence of these diseases.

A baby is not able to tell her/his caretakers that she/he is sick. What would help us to find out

(a) that the baby is sick?

(b) what is the sickness?

Under which of the following conditions is a person most likely to fall sick ?

(a) When she is recovering from malaria.

(b) When she has recovered from malaria and is taking care of someone suffering from chicken-pox.

(c) When she is on a four-day fast after recovering from malaria and is taking care of someone suffering from chicken-pox.

Why ?

Under which of the following conditions are you most likely to fall sick ?

(a) When you are taking examinations ?

(b) When you have travelled by bus and train for two days.

(c) When your friend is suffering from measles.

Why?

Why food is necessary?

What do you mean by health?

‘Public cleanliness is important for individual health’ comment.

Why good economic conditions and gibes are needed for individual health?

How can one be in poor health without actually suffering from a particular disease? Give an example.