Monday, September 8, 2008

Mumps (Infections Parotitis)

Mumps is an acute viral disease that may include myalgia, anorexia, malaise, headache, low grade fever, and parotid gland tenderness and unilateral or bilateral swelling, although many other organs can be involved.

Mumps is a caused by paramyxovirus transmitted in saliva droplets or direct contact. The virus lives in the saliva six to nine days before the parotid gland swelling. The highest communicable period is 48 hours before the onset of swelling but continue until swelling is decreased. Incubation period ranges from 14 to 25 days.

During the incubation period, the virus invades the salivary glands which cause tissue edema and infiltration of lymphocytes. Degeneration of cells in the glandular tissue produces necrotic debris that plugs the ducts.

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