seronegative

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seronegative

 [se″ro-neg´ah-tiv]
showing negative results on serologic examination; showing a low level of antibody.

se·ro·neg·a·tive

(sē'rō-neg'ă-tiv),
Lacking an antibody of a specific type in serum; used to mean absence of previous infection with a specific agent (for example, rubella virus), disappearance of antibodies after treatment of a disease (for example, syphilis), or absence of antibody usually found in a given syndrome (for example, rheumatoid arthritis without rheumatoid factor).

seronegative

/se·ro·neg·a·tive/ (-neg´ah-tiv) showing negative results on serological examination; showing a lack of antibody.

seronegative

(sîr′ō-nĕg′ə-tĭv)
adj.
Indicating a negative reaction to a serological blood test, especially one testing for the presence of antibodies.

seronegative

[-neg′ətiv]
Etymology: L, serum, whey, negare, to deny
a serological test with negative results.

seronegative

Immunology The lack of antibodies or other immune markers in serum that would indicate exposure to a particular organism or antigen; in an immunocompetent person, exposure to an antigen results in a seroconversion and the subject is said to then be seropositive. Cf Seropositive.

se·ro·neg·a·tive

(sēr'ō-neg'ă-tiv)
Lacking an antibody of a specific type in serum; denoting absence of prior infection with a specific agent, disappearance of antibodies after treatment of a disease, or absence of antibody usually found in a given syndrome.

se·ro·neg·a·tive

(sēr'ō-neg'ă-tiv)
Lacking an antibody of a specific type in serum.

seronegative (sir´ōneg´ətiv),

n serologic evidence of the lack of an antibody of a specific type in the serum; diagnostically useful in ruling out Lyme disease, syphilis, human immunodeficiency virus (HIV), serum hepatitis B, and many other viral diseases.

seronegative

showing a negative serum reaction; i.e. an animal with no detectable serum antibodies to a specified microorganism.
References in periodicals archive ?
But certainly seronegativity seems to be a strong predictor of the likelihood of sustained remission.
The highest seronegativity was seen in children between 12-23 months of age.
HIV-1/HIV-2 seronegativity in HIV-1 subtype O infected patients.
More Hepsera-treated patients achieved normalized alanine aminotransferase levels, reductions in hepatitis B DNA to below 400 copies/mL, and HBeAg seronegativity.
It is recognized that there is an initial window of HIV-1 seronegativity immediately after HIV-1 infection.
The seropositivity rate is higher in hepatic hydatid cysts than cysts in other organs; however, that seronegativity does not guarantee absence of hydatid disease.
The low sensitivity of these tests (about 30010 in early Lyme disease and 50% in late Lyme disease) and the significant seronegativity of Lyme patients (as many as 30% to 50% of cases) suggest the need for more sensitive T cell-based laboratory tests.
2] The definitive diagnostic criteria includes subsets of Seronegative Symmetrical Polyarthritis with dramatic onset of pitting oedema of hands, old age, male predominance, seronegativity for rheumatoid factor, absence of evidences of joint destruction on radiographs, excellent response to low dose steroids with long term remission after withdrawal of drugs.
Risk factors for developing PTLD in the transplant setting include EBV seronegativity of the recipient with primary EBV infection, duration and type of immuno-suppression, and type of allograft (higher risk in small intestine, heart, or lung than in liver).
Regional variation in toxoplasmosis seronegativity in the Sao Paulo metropolitan region.
1 per cent (1) in 345 healthy voluntary blood donors and seronegativity in donors less than 20 yr and more than 50 yr.
Clinical significance of Helicobacter pylori seropositivity and seronegativity in asymptomatic blood donors.