Serum sickness

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Serum sickness is a reaction to an antiserum derived from an animal source. It is a type of hypersensitivity, specifically immune complex (type 3) hypersensitivity. Serum sickness typically develops up to ten days after exposure to the antiserum, and symptoms are similar to an allergic reaction. However, it is different from anaphylaxis, since the symptoms are not instantaneous (onset is typically 2-4 weeks after exposure).

Causes

Serum sickness can be developed as a result of exposure to antibodies derived from animals. These serums are generally administered in order to prevent infection. When the antiserum is given, the human immune system can mistake the proteins present for harmful antigens. The body produces antibodies, which combine with these proteins to form immune complexes. These complexes can cause more reactions, and cause the symptoms detailed below. Serum sickness can also be caused by several drugs, notably penicillin based medicines.

Symptoms

Symptoms can take as long as fourteen days after exposure to appear, and may include:

• Rashes
• Joint pain (arthralgia)
• Fever
• Lymph node swelling (lymphadenopathy)
• Shock
• Decreased blood pressure (hypotension)
• Enlarged spleen (splenomegaly)

Treatment

Symptoms will generally disappear on their own, although corticosteroids may be prescribed in the most severe forms. Antihistamine may also be used.de:Serumkrankheit

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Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .