By serologic method for virus identification with double serum samples, 21 children with acute myocarditis in Harbin City of Heilongjiang Province were interpreted.

• 本文用血清学方法对21例儿童急性病毒性心肌炎的双份血清进行检测；结果显示:柯萨奇B组病毒近期感染阳性率为33.；3%25;