Management Guidelines for Mumps
Mumps is a self-limiting viral illness requiring primarily supportive care with symptomatic management, strict isolation precautions, and vigilant monitoring for complications that are more severe in adults. 1
Immediate Symptomatic Management
Provide pain and fever control with acetaminophen or NSAIDs to manage fever, headache, and parotid gland pain. 1
- Ensure adequate hydration and fluid intake, as parotitis makes swallowing uncomfortable and painful. 1
- Recommend soft foods and avoidance of acidic foods that may stimulate salivary flow and worsen parotid pain. 1
- Treatment is entirely supportive—there is no specific antiviral therapy for mumps. 2, 3
Isolation and Infection Control
Implement droplet precautions immediately and isolate patients for 5 days after onset of parotitis. 1
- Patients are contagious from 7 days before through 8 days after parotitis onset. 1
- Educate patients and family members about transmission through respiratory droplets and direct contact with saliva. 1
- Report probable or confirmed cases immediately to state and local health departments. 4
Common pitfall: Only 30-40% of mumps infections produce typical acute parotitis; 15-20% are asymptomatic and up to 50% present with nonspecific or respiratory symptoms. 4, 1 Do not rule out mumps based solely on absence of parotitis.
Diagnostic Confirmation
Laboratory confirmation is preferred over clinical diagnosis alone, as parotitis has multiple infectious and noninfectious causes. 4
Laboratory criteria include:
- Isolation of mumps virus from clinical specimens (parotid duct swabs after massaging gland for 30 seconds, buccal swabs, or urine). 4
- Significant rise in serum mumps IgG antibody between acute and convalescent-phase titers. 4
- Positive serologic test for mumps IgM antibody. 4
For suspected mumps encephalitis, CSF PCR is the most accurate confirmatory test. 4
Monitoring for Complications
Complications are significantly more common and severe in adults than children, requiring heightened surveillance. 4, 1
Neurological Complications
- Monitor for aseptic meningitis (occurs in 4-6% of cases): severe headache, neck stiffness, photophobia, or altered mental status. 4, 1
- Watch for encephalitis signs: seizures, paralysis, or cranial nerve palsies, which can cause permanent sequelae including aqueductal stenosis and hydrocephalus. 4, 1
- Assess for hearing loss: sudden sensorineural deafness can be bilateral and permanent. 4, 1
Reproductive System Complications
- In postpubertal males, assess for orchitis (occurs in up to 38% of cases): testicular pain and swelling. 4, 1
- In postpubertal females, monitor for oophoritis (ovarian inflammation). 1
Other Systemic Complications
- Watch for pancreatitis: severe abdominal pain, nausea, and vomiting. 1
Special Management: Facial Nerve Involvement
If facial droop or weakness develops, initiate corticosteroid therapy promptly with prednisone 1-2 mg/kg/day for 5-7 days followed by a taper over 5-7 days to reduce inflammation and improve nerve function. 1, 6
- Provide eye protection to prevent corneal damage if facial weakness prevents complete eye closure. 1, 6
- Reassure patients that complete recovery occurs in approximately 70-80% of cases within 3-6 months. 1, 6
Management in Pregnancy
Treatment in pregnant women follows the same supportive care principles with acetaminophen or NSAIDs for pain control, hydration, and soft foods. 7
- Critical caveat: Mumps vaccine is contraindicated during pregnancy due to theoretical risk from live-virus vaccine. 4, 7
- Mumps infection during first trimester increases risk for fetal death, but is NOT associated with congenital malformations. 4, 7
- Monitor for the same complications as non-pregnant patients, including oophoritis which may present with pelvic pain. 7
Outbreak Control Measures
In outbreak settings, identify and vaccinate susceptible contacts immediately. 4
- Exclude susceptible students from affected schools until they are vaccinated or until 26 days after onset of parotitis in the last case. 4
- In healthcare settings, exclude workers lacking immunity from day 12 after first exposure through day 26 after last exposure. 4
- Maintain active surveillance for two incubation periods (5-6 weeks) after the last case. 4