Germ or germ-substance introduced into the body to prevent the occurrence of an infectious disease is known as

Q. Germ or germ derived substance introduced into the body to prevent the occurrence of an infectious disease.

Q. Germ of germ-substance introduced into the body to prevent the occurrence of an infectious disease ________

Q. Name the following:
(a) Category of pathogen that causes diseases, like common cold and mumps.
(b) The vaccine for preventing tuberculosis.
(c) An organ usually affected by tuberculosis.
(d) A disease that weakens body’s defense system against infections.
(e) Germ of germ-substance introduced into the body to prevent occurrence of an infectious disease.
(f) The vector responsible for transmission of sleeping sickness.
(g) The microorganism that requires a host to produce.
(h) The popular name of the disease Filiariasis.

Q. Given alongside is a crossword puzzle. Read the clues across and clues downward, and fill up the blank squares.

Clues across
1. Category of pathogen that causes diseases, like common cold and mumps.
5. This is the vaccine for preventing tuberculosis.
6. An organ usually affected by tuberculosis.
7. Jumbled spelling of one of the most common insect which visits our exposed foods and contaminates them.
8. Cover this part of your body by a handkerchief while sneezing to prevent droplet infection to others.
9. These may readily grow in your hair, if you do not wash it regularly.
10. A disease that weakens body’s defence system against infections.
Clues down
1.Germ or germ substances introduced into the body to prevent occurrence of an infectious disease.
2. A disease caused by the bite of an infected dog, and which affects the central nervous system.
3. A disease in which the eyes, the skin and the urine turn yellow.
4. The disease pertussis is popularly known as whooping………