The panel, formally known as the Advisory Committee on Immunization Practices — whose members Health Secretary Robert F. Kennedy Jr. fired in June and replaced with a group that has largely expressed skepticism of vaccines — recommended that women who test negative for hepatitis B can decide in consultation with a health care provider whether their baby should get the birth dose. The group suggested waiting until at least 2 months of age for the first dose if the vaccine is not given at birth.
中国曾有总人口近10%乙肝病毒携带者，90年代在获得美国的乙肝疫苗后，对新生儿注射免疫，乙肝病毒携带者在年轻人中几乎绝迹。
