IL33 and COVID-19: Higher concentrations of IL-22 and IL-33 were associated with an increased risk of COVID-19 (IL-22: OR = 17.80 [95% CI: 6.48–48.90], p = 0.001); IL-33: OR = 19.0 [95% CI: 7.4–48.6], p = 0.001) (Table 3).