secondary attack rate in families

例句：

1. 1. The study found that the secondary attackrate in families was significantly higher than expected.
   研究发现，家庭中的次要攻击率远高于预期。
2. 2. The researcher analyzed the data todetermine the secondary attack rate in families.
   研究人员分析了数据以确定家庭中的次要攻击率。
3. 3. The report highlighted the importance of monitoringthe secondary attack rate in families for effectiveintervention.
   报告强调了监测家庭中的次要攻击率对于有效干预的重要性。