Young people living with HIV need treatment, care, support and positive prevention services.

感染艾滋病毒的年轻人需要治疗、保健、支持和积极的预防服务。

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Rule out the possibility of harm is a positive prevention of environmental damage liability, which can play a proactive role.

排除危害是一种积极性的预防环境危害的责任形式，它能够起到防患于未然的作用。

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Positive prevention has become increasingly important as improvements in treatment have led to a rise in the number of people living with HIV.

积极预防使得更多的人可以带病生存，被视为艾滋病治疗中的改良方法，其作用越来越重要。

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When we cultivate the positive, we are essentially focusing on prevention.

当我们培养出积极性，我们本质上是自我防御的。

哈佛公开课 - 幸福课课程节选

Since the beginning of the epidemic, there have been significant reductions in mother-to-child transmission of HIV in the U.S. Research has also shown that progress is possible through targeted prevention programs that are effective in reducing risky behaviors among HIV-positive and HIV-negative women.

WHITEHOUSE: March 10 -- Redoubling Our Efforts on National Women and Girls HIV/AIDS Awareness Day | The White House

Bristol-Myers Squibb ( BMY) and Pfizer ( PFE) announced over the weekend positive results in a Phase 3 trial that compared Elquis to warfarin for the prevention of stroke or systemic embolism in patients with atrial fibrillation and at least one risk factor for stroke.

FORBES: Bristol-Myers, Pfizer Announce Positive Results; An FDA Approval for Pfizer

In the past several years, one of the most respected institutions in the area of disease prevention has come under scrutiny for allowing its assessments to be colored by a bias toward positive results and to be swayed by advocacy in the wider society.

FORBES: How Activism Distorts The Assessment Of Health Risks