联合使用乙型肝炎免疫球蛋白(hepatitis B immunoglobulin,HBIG)和疫苗能预防乙肝母婴传播。我国为乙肝表面抗原(hepatitis B surface antigen,HBsAg)阳性母亲的新生儿免费提供1针100 U的HBIG。然而,许多医护人员和家长因担心100 U保护效果差,而使用200 U,特别对乙肝e抗原(hepatitis B e antigen,HBeAg)
LiMn1.8Co0.2O3.95F0.05 powder was prepared by heating the ignited LiMn1.8Co0.2O3.95F0.05 precursor gel using lithium acetate, magnesium acetate, cobalt acetate,