A: Live attenuated vaccine is better in terms of immunity provided to the recipient.
R: As secondary lymphoid organs, for example, peyer's patches are stimulated to protect the individual.
A: Asthma patients must never be exposed to dust.
R: Allergic response may cause vasoconstriction and death.
A: Colostrum is a very efficient means of transferring immunity to a newborn.
R: IgM from mother’s milk protects the baby from the respiratory infection usually affecting in young age.
A: Vaccine against AIDS has not been made in spite of repeated attempts.
R: HIV has the ability to get mutated to form several subtypes.
A: Antibiotics like penicillin can be used to treat common cold.
R: Penicillin causes lysis of viral cells.
A: It is considered advantageous to give the polio vaccine orally.
R: It prevents reinfection by causing intestinal immunity.
A: Typhoid carriers may be cured by surgical removal of their gall bladder.
R: The disease germs remain concentrated in it.
The bacteria of typhoid remain in the gall bladder.
A: Cancer is contagious, and cells can spread from one person to another.
R: Cancerous cells are highly dedifferentiated cells.
Cancer is not contagious, and cells do not spread from one person to other.
A: A person who has received a cut accidentally and is bleeding needs to be given anti-tetanus treatment.
R: Anti-tetanus injection provides active immunity by providing preformed antibodies for tetanus.
A: LSD and marijuana are clinically used as analgesics.
R: Both these drugs suppress brain function.