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Mumps (parotitis)

Mumps (parotitis). Dr. Mohammed Arif Associate professor Consultant virologist Head of the virology unit. Mumps (parotitis). Inflammation of the salivary glands. Mainly the parotid glands are affected. There are three pairs of salivary glands.

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Mumps (parotitis)

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  1. Mumps (parotitis) Dr. Mohammed Arif Associate professor Consultant virologist Head of the virology unit

  2. Mumps (parotitis) • Inflammation of the salivary glands. • Mainly the parotid glands are affected. • There are three pairs of salivary glands. • Two parotid glands, the largest, one in each cheek, over the angle of the jaw , in front of the ear. • Two sub mandibular glands at the back of the mouth. • Two sub-lingual glands, under the floor of the mouth.

  3. Salivary glands .

  4. Viral etiology • Caused by mumps virus. • Family: paramyxoviridae. • Genus: parainfluenza virus. • Pleomorphic, enveloped with helical nucleocapsid. • The viral genome is ss-RNA, with negative polarity. • The viral envelope is covered with two glycoprotein spikes, the HN which posses both hemagglutinine and neuraminidase activities , and the fusion glycoprotein.

  5. Viral etiology • The fusion protein enables the virus to form multinucleated giant cell by fusing infected cells together.

  6. Transmission • By inhalation of respiratory droplets, during sneezing and coughing. • The virus sheds in saliva. • Also, the virus can be transmitted by direct contact with saliva.

  7. Clinical features • Mumps is a highly infectious child-hood disease. • IP, about three weeks. • Mumps starts with moderate fever, malaise, pain on chewing or swallowing, particularly acidic liquids. • Followed by inflammation of the salivary glands, particularly the parotid glands. • The swelling appears in front of the ear.

  8. Parotitis .

  9. Parotitis .

  10. Complications • Aseptic meningitis. • Encephalitis. • Orchitis, after puberty. Inflammation of one or both testicles. Usually unilateral , rarely leads to sterility . • Pancreatitis. • Oophoritis. • Thyroiditis.

  11. Prognosis & lab diagnosis • In the absence of complications recovery is usual. • Lab. Diagnosis, by detection of IgM antibody to mumps virus.

  12. Prevention • A live attenuated vaccine is available (MMR). • It contains mumps, measles and rubella attenuated virus strains. • Administered in one dose, intramuscularly or subcutaneously. • The vaccine is protective.

  13. treatment • There is no specific anti-viral drug therapy. • Treatment is supportive by treating symptoms, using antipyretics and analgesics.

  14. Child care • The child must rest in bed until the fever goes away. • Isolate the child, to prevent spreading the disease to other. • Use analgesics and anti-pyretic to ease symptoms. • Avoid food that require chewing. • Avoid sour foods that stimulate saliva production. • Drink plenty of water. • Use cold compress to ease the pain of swelling glands.

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