Abstract
The relation between sudden deafness and viral infection has not been established, though the latter is regarded as one of the causative agents of the former. Six viruses, i. e. herpes simplex, varicella zoster, influenza A and B, mumps and adenovirus are examined with respect to the titers of the complement fixation test in 103 patients (106 ears) for six years from 1976 to 1981. The results are analyzed according to the year of examination, sex and age off the patients, hearing level and prognosis.
For comparison, the same examination and analysis were performed in 298 Bell's palsy patients during the same period. Numerous similar results were found between these two diseases. Herpes simplex and influenza A viruses were the main viruses in these diseases. Male patients suffered more severely from these diseases. There are statistically significant differences between the patients above 50 and those below 49 years of age with respect to the prognoses of both diseases.
