In contrast, there were no statistically significant differences between the mild group patients treated with or without IVIG regarding age, comorbidities, concurrent diabetes mellitus, hypertension, hepatitis, WBC count, neutrophil count, lymphocyte count, platelet count, ALT level, serum creatinine level, BUN level, GLU level, ALB level, d‐dimer level, CK, and CK‐MB levels. This evidence concerns the gene ALB and hepatitis A virus infection.