Twenty years ago, âinfrastructureâ was defined primarily with respect to the. adequacy of the nationâs public works. In the mid-1990's, however, the growing. threat of international terrorism led policy makers to reconsider the definition of. âinfrastructureâ in the context of homela nd security.
Risk factors for leukoplakia of the vocal cords include: ï· Alcohol use ï· Tobacco use ï· Laryngopharyngeal reflux ï· Diabetes ï· Use of inhaled steroids ï· Use of corticosteroids ï· Use of immunosuppressive drugs including chemotherapy and anti-rejection medicines ï· Radiation therapy.
Laryngitis occurs when your voice box or vocal cords become inflamed from overuse, irritation, or infection. Laryngitis can be acute (short-term), lasting less than three weeks. Or it can be chronic (long-term), lasting more than three weeks. Many conditions can cause the inflammation that result in laryngitis. Viral infections, environmental factors, and, bacterial infections can all cause laryngitis.