Fig. 3
(A–B) Reactive oxygen species (ROS) production, (C–D) hydrogen peroxide levels (H2O2), (E–F) superoxide dismutase, and (G-H) catalase activity in adult zebrafish (Danio rerio) unexposed or exposed to SARS-CoV-2 at different concentrations. In “A”, “C”, “E”, and “G”, parametric data are presented by the mean + standard deviation, whereas non-parametric data are presented by the median and interquartile range. Distinct lowercase letters indicate significant differences. Statistical summaries are shown next to the graphs. SARS-I and SARS-II: composite groups of zebrafish exposed to SARS-CoV-2 lysate protein at 0.742 and 2.226 pg/L, respectively.