(HealthDay News) -- Mumps are a caused by a virus, normally during childhood, and carried via saliva. Since most children in developed nations are vaccinated against mumps at a young age, the disease is fairly uncommon in these areas.
But infection in children and even adults is still a possibility, and the Nemours Foundation offers these warning signs:
Left untreated, complications from mumps could include encephalitis and meningitis. Mumps is a very contagious virus, but it cannot be treated with antibiotics, which are effective only on bacterial infections.
If you suspect a family member or loved one has mumps, have the person see a doctor as soon as possible.