Abstract
The authors report a case of a patient suffering from acute polyarthritis with a high rheumatoid factor titre, associated with a Klebsiella pneumonitis. A polyclonal B lymphocyte activation or a possible cross reaction between rheumatoid factor and an antigen related to Klebsiella may explain the elevated production of rheumatoid factor observed.
MeSH terms
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Acute Disease
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Arthritis, Infectious / complications*
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Arthritis, Infectious / metabolism
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Female
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Humans
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Immunoglobulin M / metabolism*
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Klebsiella Infections / complications*
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Klebsiella pneumoniae
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Middle Aged
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Pneumonia / complications*
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Pneumonia / metabolism
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Rheumatoid Factor / metabolism*
Substances
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Immunoglobulin M
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Rheumatoid Factor