When a vaccine enters the blood, the WBCs recognize it as a……………
a) own body particles
b) harmless germs
c) real disease-causing germs
d) all of these
The antibodies remain in the……
a) blood
b) stomach
c) intestine
d) all of these
Who discovered vaccine?
a) Joseph Lister
b) Alelxander Fleming
c) Robert Koch
d) Edward Jenner
Which of the following was the first disease to immunize?
a) smallpox
b) cowpox
c) measles
d) malaria
Pus from…………….is used as vaccine against smallpox.
a) smallpox
b) cowpox
c) chickenpox
d) all of these
GOVT of Pakistan established the EPI programme in?
a) 1978
b) 1988
c) 1998
d) 2008
