Seropositivity

Seropositivity is the presence of a certain antibody in a blood sample. A patient with seropositivity for a particular antigen or agent is termed seropositive.

It is not a neutral term, as in popular perception seropositivity is used most commonly in reference to HIV seropositivity. It is also used (though less frequently) to refer to Rheumatoid factor.

• Serology
• Seroconversion

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