Transfusion of infected blood or blood products is the most efficient of all ways to transmit HIV.

使用受感染的血液或血液制品，是所有传播HIV病毒的途径中最有效的。

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Ways to transmit HIV mother-to-child transmission (PMTCT) and blood are the main types of the way.

艾滋病的传播方式主要有母婴传播和血液传播等几种方式。

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People who are already living with HIV need knowledge and support to protect their own health and to ensure that they don’t transmit HIV to others - known as “positive prevention”.

已经感染HIV病毒得人需要知识和支持，保护自身健康，并确保自己不会将HIV病毒传染给其他人- 这就是所谓的“积极预防”。

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Increased HIV testing may help identify these individuals, reducing the chance that they will transmit HIV to others and improving their own health outcomes.

WHITEHOUSE: Institute of Medicine Releases Report on Health Care System Capacity for Increased HIV Testing and Provision of Care | The White House

In addition, global access to these life-saving therapies has been progressively increasing, which not only benefits the HIV-infected individual, but makes them less likely to transmit the virus to their sexual partners.

WHITEHOUSE: HIV Vaccine Awareness Day, 2011

Patients on antiretroviral medication are less infectious because the drugs sharply suppress the amount of HIV in the body, meaning people on treatment have less virus to transmit.

WSJ: AIDS Study Marks Prevention Breakthrough With Antiretroviral Drugs