In contrast, the rate of mumps orchitis estimated from HES data was lower than that found by enhanced surveillance.
The latter explanation was supported by the finding that a history of mumps vaccination was also associated with a lower risk for mumps hospitalization, mumps orchitis, and mumps meningitis in the enhanced surveillance data, even after age and sex were controlled for.
The effects of long-term complications, such as sensorineural deafness and the possible link between mumps orchitis and infertility, were not included in our analysis (3,32-35).
Sperm count, morphology and motility after unilateral mumps orchitis.
The incidence and outcome of mumps orchitis in Rochester, Minnesota, 1935 to 1974.
As mumps orchitis usually only affects one testicle, however, the commonly- feared side effect of reduced fertility is quite uncommon.
Interestingly, men who smoke cigarettes are statistically more likely to develop mumps orchitis than non-smokers.