Flu is one medical condition we all experience - but why is the virusA microbe that is only able to multiply within living cells. so successful at infecting us and what can we do about it?
Share your own stories of dealing with fluA viral infection affecting the respiratory system..
Young person's guide to flu
Should you go to school with fluA viral infection affecting the respiratory system.?
Get the answers to this and other questions with our guide for young people.