The common cold contagious period may begin two to three days before symptoms appear and lasts about two weeks. As explained in this eMedTV article , the ... cold.emedtv.com |
People are most contagious for the first 2 to 3 days of a cold. ... Cold symptoms usually start about 2 or 3 days after you came in contact with the virus, although it ... www.nlm.nih.gov |
During the first three days that you have cold symptoms, you are most contagious ; however, colds are often contagious through the first week. This means you ... www.webmd.com |