In the latest Keeping Kids Healthy column by UTMB Drs. Sally Robinson and Keith Bly: School-aged youths have six to eight colds per year, according to the American Academy of Pediatrics. Caused by viruses, not by damp weather, colds spread through the air (via cough and sneeze droplets) and by direct contact (touching people and contaminated objects, such as doorknobs, toys and telephone receivers).