Dear sir, I have a friend, her husband was died due to blood cancer in last Apr 15. Presently she has 2 child. She I lived with her child and parents. I just want to confirm, is there any symptoms or chances of cancer with her and her children. Is cancer is STD diseases, is transmitted during sexual intercourse. This is require because we re worry about her next marriage. Can she marry once again. Pl give valuable reply. Vishal.