As shown in Table 3, severe EV infection was associated with the following factors: infection by EV-B (OR 4.260, 95% CI 1.907–9.517), young age, less than 3 months (OR 6.474, 95% CI 2.794–15.002), abnormal platelet count (OR 2.745, 95% CI 1.278–5.897), and ALT level > 40 U/L (OR 3.064, 95% CI 1.031–9.105). Here, GPT is linked to infection.