In addition, we showed that the cytokines IFN-γ, IL-2, IP-10, IL-1β, IL-6, IL-8, and TNF could discriminate the status of SARS-CoV-2 infection or exposition, and also it highlighted the high levels of pro-inflammatory IL-1β and IL-6 in long-COVID-19 when compared to the unexposed group. Here, IFNG is linked to COVID-19.