Some traditional prophylactic drugs are no longer effective because the parasites have become drug-resistant.
一些传统的预防药物已不再有效，因为这种寄生虫越来越有抗药性。
Writing in PLoS Medicine's sister journal, PLoS ONE, Dr Abbas and Dr Mellors describe what happened when they added prophylactic anti-retroviral drugs to the model.
乌姆·阿巴斯博士与约翰·迈勒斯博士把投放预防性抗逆转录药物到疫情模型后所记录到情况发表在《公共科学图书馆之医学专刊》（PLoS Medicine's）的姐妹刊《第一公共科学图书馆》（PLoS ONE）上。
Prophylactic use of veterinary drugs is prohibited.
禁止使用药物作预防疾病之用。
The variability in the individual degree of response to these drugs in multi arm trials suggests clinicians and patients work together to identify the most effective prophylactic therapy.
在多重组别试验中，这些药物的不同反应程度表示：临床医师和病患应共同合作，以期找出最为有效的预防性治疗。
Objective To select the Chinese traditional drugs which could prevent acute oxygen toxicity and to inquire the relationship between their prophylactic effect and SOD activity.
目的选取能够有效地延缓急性氧惊厥发生的中药，探讨其预防作用及其与SOD活性的关系。
Objective To select the Chinese traditional drugs which could prevent acute oxygen toxicity and to inquire the relationship between their prophylactic effect and SOD activity.
目的选取能够有效地延缓急性氧惊厥发生的中药，探讨其预防作用及其与SOD活性的关系。
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