Mumps is an acute infectious disease caused by the mumps virus, which commonly causes swelling and tenderness of the parotid glands. It most often affects children between 5-9 years old and has an incubation period of around 2-3 weeks, usually 18 days. The virus spreads through droplets from infected individuals when they cough or sneeze. While complications are not common, they can include orchitis, ovaritis, or inflammation of the pancreas, meninges, thyroid, or other organs. Vaccination with the live attenuated mumps vaccine is the best prevention.

1. Mumps
Dr. Saurabh Agrawal

2. Intro
• Acute infec. Disease
• Caused by RNA virus classified as rubulavirus
of family paramyxoviridae
• Non suppurative enlargement and tenderness
of one or both parotid glands
• Negligible mortality, morbidity is high

3. Problem statement
• Incidence- 100-1000cases / 1 lakh population

4. Agent fac
• Agent- Myxovirus parotiditis
• Source- clinical & subclinical case
• Communicability- usually 4-6 days before the
onset of symp and a week or more there after.
• Maximum infectivity is just before and at the
onset of parotitis

5. Host fac
• Age and sex- 5-9yrs, no age is exempt if no
immunity
• More severe in adults
• Immunity- one attack, clinical, sub-clinical life
long immunity

6. Environment fac
• Peak is winter and spring
• Epidemic is associated with over crowding

7. Mode of transmission
• Droplet infection and direct contact with
infected person

8. Incubation period
• Varies from 2-3 weeks
• Usually 18 days

9. Clinical features
• Generalized viral infection
• 30-40% clinically non- apparent
• Pain and swelling in one or both parotid gland
• Also involve sub lingual and sub mandibular
glands
• Often child complains ear pain prior to onset
of swelling
• Pain and stiffness in opening mouth

10. • May also affect
– Testis
– Pancreas
– CNS
– Ovaries
– Prostate
• Severe cases might mark fever, headache for
3-5 days
• Swelling subsides over 1-2 weeks

11. Complication
• Frequent but not serious
• Orchitis, ovaritis, pancreatitis, meningo-
encephalitis, thyroiditis, neuritis, hepatitis,
myocarditis

12. Prevention
• Vaccination: live attenuated
– Single dose- 0.5ml IM