In order to understand the infection condition of hepatitis A virus (HAV) in troop recruits, we collected blood samples from 914 recruits at the time of their enlistment in the army.

• 为了解部队新战士甲型病毒性肝炎（甲肝）易感情况，对某部当年入伍的914名新战士采血，用酶联免疫吸附试验检测血清抗-HAV。