from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Showing a positive reaction to a test on blood serum for a disease; exhibiting seroconversion.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. : Testing positive for a given pathogen, especially HIV (HIV positive).
  • adj. : Having seropositive blood serum.


from Wiktionary, Creative Commons Attribution/Share-Alike License

From sero- +‎ positive.


  • I told the doctor, We don’t have a word for seropositive in Somali.


  • - Data from a pooled cohort of two MabThera Phase III studies showed that patients who tested positive for either RF or anti-CCP (known as seropositive), were two to three times more likely to achieve a 70% improvement in their symptoms (ACR70) 1 when treated with MabThera than those who did not have these autoantibodies (20.9% seropositive patients achieved ACR70 vs. 6.9% seronegative patients).

  • Therefore, in a truly negative population using this test 55 herds would be classified as seropositive out of 146 sampled herds.

    PLoS ONE Alerts: New Articles

  • Herd-level sensitivity (HSe), which is the probability that a seropositive herd is correctly classified as seropositive, is a function of the sample size, diagnostic test sensitivity, sample interpretation and importantly, within herd animal-level prevalence.

    PLoS ONE Alerts: New Articles

  • Interesting, since an earlier study this year in the journal Sexually Transmitted Diseases estimated that 11.8% of MSM were seropositive and the CDC estimated in 2006 that 79% of those who were poz knew it.

    Alex Blaze: Media Outlets Fumble With CDC Data on MSM HIV Rates

  • From January 1984 to July 2009, there were 4,021 HIV Ab seropositive cases reported, of which 3,204 (80%) were asymptomatic and 817 (20%) were AIDS cases.

    Global Voices in English » Philippines: Living with HIV

  • Benlysta is used in seropositive patients with systemic lupus erythematosus.

    Human Genome, Glaxo Produce Positive Benlysta Results

  • I would hear the Dutch doctor say those three horrible words, “You are seropositive,” and the wheels in my head would churn to find a way to describe such a thing in Somali.


  • Although many individuals do not have confirmatory serologic tests, surveillance studies show that these patients may have a similar risk of developing persistent, recurrent, and refractory Lyme disease compared with the seropositive population.

    Archive 2007-03-01

  • I was right on the verge of a trip to England when he called and told me that he was seropositive.

    Firedoglake » Late Nite FDL: Gone


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