Xanthia's grand dad is showing particular symptoms.

Which disease could it be?

One of your friends is suffering from fever along with cough. He/She is experiencing shaking chills and shortness of breath. Can you identify the disease by these symptoms and also its causative agent? Which organ system according to you has been affected by this disease? What will you advise your friend?

(iii) AIDS does not spread through shaking hands, hugging or kissing. Is it true? Comment.