serum reaction

例句：

1. 1.The patient's blood test showed a serum reaction to the vaccine.
   患者的血液测试显示对疫苗有血清反应。
2. 2. The researcher found that the serum reaction was due to a rare genetic mutation.
   研究人员发现血清反应是由一种罕见的遗传突变引起的。
3. 3. The doctor advised the patient to avoid any serum reactions by avoiding certain foods.
   医生建议病人避免某些食物以避免血清反应。