Spasmodic dysphonia. Spasmodic dysphonia (or laryngeal dystonia) is a voice disorder characterized by involuntary movements or spasms of one or more muscles of the larynx (vocal folds or voice box) during speech. Contents.
The common cold is medically referred to as a viral upper respiratory tract infection. Symptoms of the common cold may include cough, sore throat, watery eyes, nasal congestion, runny nose, and sneezing.ecause so many different viruses can cause the common cold and because new cold viruses constantly develop, the body never builds up resistance against all of them. For this reason, colds are a frequent and recurring problem.
The Common Cold. The Common Cold is caused by a virus. There are over 200 known cold causing viruses the most common being the human rhinovirus of which there are over 100 different strains or serotypes causing about 50% of all colds &plusmn 20%. The remaining 30% to 70% of colds are caused by other viruses.What matters here is that.he Common Cold is caused by a virus. There are over 200 known cold causing viruses the most common being the human rhinovirus of which there are over 100 different strains or serotypes causing about 50% of all colds &plusmn 20%. The remaining 30% to 70% of colds are caused by other viruses. What matters here is that.