Vaccines already prevent the deaths of 2-3 million people every year, preempt human suffering, lighten the burden placed on health-care systems, and enable more rapid economic and social development. Models show that adding even a partly effective AIDS vaccine to the current range of prevention and treatment procedures could dramatically lower the rate of HIV infection.
疫苗每年能够挽救200—300万条生命，预防人类苦难，减轻医疗系统负担，并促进更快的经济和深灰发展。模型表明，即使是部分有效的艾滋病疫苗，如果用于当前预防和治疗过程，也可以大大降低HIV传染率。