acute infectious gastroenteritis

例句：

1. 1. The patient's symptoms are acute, indicating a severe infection.
   患者的病情是急性的，表明是严重的感染。
2. 2. The researcher found that the virus is acutely sensitive to temperature changes.
   研究者发现这种病毒对温度变化非常敏感。
3. 3. The doctor advised the patient to take an acute course of antibiotics.
   医生建议病人服用急性抗生素疗程。