Name any two groups of microorganisms from which antibiotics could be extracted.

Who discovered "vaccine" for the first time?

Name two diseases which can be prevented by using vaccines.

Name any three diseases transmitted through vectors.

Fill in the blanks:

(a) ..... disease continues for many days and causes ... on body.

(b) …… disease continues for a few days and causes no long term effect on body.

(c) .... is defined as physical, mental and social well being and comfort.

(d) Common cold is… disease.

(e) Many skin diseases are caused by