showing a high level of antibodies to a particular antigen.

Possessing antibodies against (and, therefore, usually immunity to) a specific pathogen.

(adjective) having or being a positive serum reaction, especially in a test for the presence of an antibody (circa 1930).

Having HIV antibodies in the blood; testing positive for HIV.

Seropositive refers to an individual whose blood contains the Human Imuno-deficiency Virus (HIV)

having a blood test result which indicates infection with an organism (e.g., HIV). A test may detect either antibodies to an organism (antibody positive) or the organism or its proteins (antigen positive).

See Antibody Positive Test Result.

Refers to blood that shows traces of HIV antibodies (i.e., HIV-infected persons, but without symptoms.

When a suspected substance being searched for, such as hepatitis C virus, shows up in a blood test.

as related to HIV infection, testing positive for the presence of HIV, but not necessarily showing outward signs of the infection.