Virus
Mumps virus
Parotitis, orchitis, aseptic meningitis
MUMPS VY-rus
High-yield clue
Bilateral parotid gland swelling, with orchitis a notable complication in postpubertal males, is the classic mumps clue.
Overview
An enveloped negative-sense RNA paramyxovirus spread by respiratory droplets that classically causes swelling of the parotid glands; it is a component of the MMR vaccine.
Classification
- RNA virus
- Negative-sense single-stranded RNA
- Enveloped, HN and F glycoproteins
- Family Paramyxoviridae, genus Orthorubulavirus
Lab & identification clues
- Orthorubulavirus classification concept
- IgM serology and RT-PCR vocabulary
- Buccal/parotid swab sampling concept
- Elevated amylase study association
Associations
- Parotitis (parotid gland swelling)
- Orchitis, oophoritis, and aseptic meningitis complications
- Respiratory-droplet transmission
- MMR vaccine prevention history
Commonly confused with
- Parainfluenza virus
- Bacterial (suppurative) parotitis
Your notes
Original student-study summary. Sources checked: OpenStax Microbiology 2e, NCBI Bookshelf Medical Microbiology, and CDC topic pages where applicable; reviewed 2026-06. Educational only; no diagnosis, treatment, dosing, or specimen-handling guidance.