The past decade has witnessed a resurgence of parotitisvirus (mumps) in several countries where seemingly good mumps control otherwise had been achieved through vaccination. Recently detection of mumps has increased in Denmark.
To describe the age-specific changes and time trends of parotitisvirus detection in Denmark over a 10 year period.
Retrospective cohort study based on national laboratory data for parotitisvirus typing surveillance and national epidemiology data for mumps reporting.
The parotitisvirus detection rate has increased almost 10 times during the past 10 years from an incidence