Question

A person who has already suffered from chicken pox has less chances catching it again. why ? (3) marks question

Answer 1

due to antibodies development against chickenpox there are less chances of this disease

Answer 2

this is because when ever a person suffer from any disease, in his body antibodies are created to fight against the virus of the particular disease by releasing some enzymes and when the same virus attack the body, antibodies immediately release enzymes effective against them and defeat them but after a certain period of time just like human the is forgotten by the body.so chance of occuring of the same disease occur.