But what about when a population is already ill? In 1996, during a major meningitis epidemic in northern Nigeria, the drug company Pfizer supplied doctors with the oral antibiotic Trovan, which was being tested against another drug, ceftriaxone.
但如果受试者本来已经患病？1996年，在尼日利亚北部脑膜炎大规模流行期间，制药公司辉瑞向医务人员提供了口服抗生素特洛芬，目的是与另外一种药物头孢曲松钠进行对比。