The patient's condition has improved.

病已见轻。

《新英汉大辞典》

The placebo effect occurs when people report their condition has improved after receiving any treatment, regardless of its therapeutic value.

在人们声称在接受了任何一种治疗后情况已有所改善，而无关治疗效果本身时，安慰剂效应就发生了。

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The condition of the other five women has not improved even though they are no longer handling such materials.

其他五位妇女的情况也未得到好转，尽管她们已经不再接触这些材料。

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Eli Lilly, for example, a major pharmaceutical company, invested an enormous amount in a drug as a potential solution, but had to terminate it in Phase 3 trials because the medication worsened the patient rather than improved the condition.

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However, it said since 2001 the general condition of defences had not improved significantly.

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But on Saturday, Mr McGrath said the former president's condition had improved.

BBC: George H W Bush moved out of intensive care