Billy Dee Williams was born William December Williams on April 6, 1937 in New York City. Billy Dee has notched up an impressive array of film and television appearances over the past 50+ years. He is easily best known to international film audiences as the roguish Lando Calrissian in the last two episodes of the original Star Wars-trilogy: Star ... See full bio Â».
Definition of contagious for English Language Learners. : 1  able to be passed from one person or animal to another by touching. : 2  having a sickness that can be passed to someone else by touching. : 3  capable of being easily spread to others : causing other people to feel or act a similar way.
Most of the time you become contagious about One to three days after contracting the flu and stay contagious for up to 5 days after onset of symptoms. However, children and adults with weakened immune symptoms can be contagious to those around them up to 14 days. For colds, most people are contagious for a day before symptoms appear and remain contagious for up to 5-7 days. In rare cases, children can pass a cold for up 14 days. A cold is also known as an upper respiratory infection.