Seropositivity

Noun

1. The quality or state of being seropositive, of having blood serum that tests positive for a given pathogen, especially HIV.

   "Pretest probability inversely correlates with the probability that the reported seropositivity is a false-positive."

2. Seropositivity prevalence rate: synonym of seroprevalence.

   "At first, the prophylaxis budgeting efforts were triaged to the areas with the highest seropositivity."