rhinovirus /rī′nōvī″rəs/ [Gk, rhis + L, virus, poison] , any of about 100 serologically distinct, small ribonucleic acid viruses that cause about 40% of acute respiratory illnesses. Infection is characterized by dry scratchy throat, nasal congestion, malaise, and headache. Fever is minimal. Nasal discharge lasts 2 or 3 days. Children may also develop a cough. Type-specific antibodies may last for 2 to 4 years. The treatment is nonspecific and may include rest, analgesics, antihistamines, and nasal decongestants. Complete recovery is usual. Also called coryza virus. Compare adenovirus, parainfluenza virus, respiratory syncytial virus. See also cold.