Influenza, commonly shortened to "flu" is an extremely contagious respiratory illness caused by influenza A or B viruses. Flu appears most frequently in winter and early spring.
Meniere's disease is a condition of unknown cause in which the patient experiences symptoms of vertigo, hearing loss, tinnitus and a feeling of fullness in the ears.
Crigler-Najjar syndrome arises due to the lack or deficiency of the enzyme uridine diphosphate glucuronosyl transferase. Type 1 and type 2 forms of the disease have been described.