Figure 2.

Seroprevalence in COVID-19. Subjects in green are uninfected people (neither current nor past) with negative serology; subjects in orange are infected people (current or past) with negative serology, and subjects in red are infected people (current or past) with positive serology. Estimating seroprevalence points to three primary conclusions. First, there appears to be a high variation among different territories worldwide. Second, although efforts to characterize the impact of SARS-CoV-2 are worth highlighting, there is still insufficient data to estimate the precise impact of this virus. Third, the studies on seroprevalence display the susceptibility of healthcare workers to SARS-CoV-2. However, the impact could be undermined due to individuals who become infected (COVID-19 positive) and have negative serological results.