CYP2E1 and hepatitis A virus infection: In addition, One of tSNPs was RsaI polymorphism (rs2031920), and our results showed there was no statistically significant association between CTY2E1 RsaI c1/c1 genotype and anti-TB drug-induced hepatitis (OR = 0.99, 95% CI:0.62–1.59) compared with CYP2E1 RsaI c1/c2 or c2/c2 genotypes.