109 Introduction Mumps is a common childhood infection caused by the mumps virus. The hallmark of the infection is swelling of the parotid gland. Aseptic meningitis and encephalitis are common complications of mumps together with orchitis and oophoritis. Other complications include deafness and pancreatitis . Although deafness is a rare complication of mumps, it is still one of the most common ...

The aetiology of hearing loss in humans is multifactorial. Besides genetic, environmental and infectious causes, several endocrine and metabolic abnormalities are associated with varying degrees of hearing impairment. The pattern of hearing loss may be conductive, sensori-neural or mixed. The neurophysiology of hearing as well as the anatomical structure of the auditory system may be influenced...

From the Audiology Division of the Speech Clinic, Institute for Human Adjustment, The University of Michigan, 1111 East Catherine, Ann Arbor, Mich. 48104. Constant or recurrent exposure to high intensity sound can permanently damage hearing. Pediatricians and otologists are becoming increasingly aware of this danger, especially to teenagers who listen to rock’n roll music and entertainment&mdas...

consanguineous marriage is strongly favored in many large human populations. in the most parts of south asia, consanguineous marriage account for 20%  to over 50% of the general population. the effect of consanguinity on hereditary deafness has been well studied and documented. many authors have suggested that approximately one half  of sensory neural hearing loss in children can be attributed ...