Question

raju of class9 was suffering from chicken pox his friends priya and shaurya wanted to visit him shaurya's mother did not allow him to go priya already had suffered from it few months before priyas parents allowed her to visit him. what could be the reason behind their parents decision?what is the basis of immunization?

Answer 1

chicken pox is a communicable disease ... which means it can spread from one to another.. but when the virus of chicken pox enters the body once.. our immune system dosn't recognises it and we catch chicken pox but after it had enter once and recovered... our immune system recognises it and when the next time it tries to attack again... our immune system fights with double vigour as it has recognised its ( the viruses ) power and prevents us from chicken pox...

As raju has chicken pox and shaurya hadn't suffered yet ... shaurya is in the risk of catching it but as priya already caught it ... she wont catch it again...

hope it helped you...
thanx for giving time to read my answer..