Hepatitis A vaccines are especially recommended for those who () A、travel abroadB、have other forms of liver diseaseC、have many sexual partnersD、are in high-risk occupations
Hepatitis A vaccines are especially recommended for those who ()
A、travel abroad
B、have other forms of liver disease
C、have many sexual partners
D、are in high-risk occupations
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13、肝炎病毒（Hepatitis）是指以肝脏为主要靶器官，对肝脏有亲嗜性，引起病毒性肝炎的病原体。