Mumps
Mumps is a contagious viral infection that commonly causes swelling of the saliva-producing glands near the ears. It can affect children and adults. Most people recover fully, but complications can include inflammation of the brain. Vaccinated people can still get mumps, although their illness is usually milder and complications are less common.
Prevention: Vaccine
Symptoms
- Tender swelling around one or both sides of the jaw and puffy cheeks
- Fever and headache
- Tiredness and reduced appetite
Transmission
- Saliva and respiratory droplets released when an infected person coughs, sneezes, or talks
- Close contact, including kissing or sharing cups and bottles
Prevention
Vaccination is the main protection against mumps. Avoid sharing items that carry saliva. If mumps is suspected, contact a healthcare professional and limit contact with others; people can spread the virus before swelling appears and while they are ill.
Traveler risk
Exposure is more likely around outbreaks and in places where people spend time together, including schools and other crowded settings. Check vaccination protection before international travel.
Source
- About Mumps
Based on CDC information
Source language: English
Source reviewed: July 11, 2025
Source accessed: May 17, 2026
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