Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany.
Lancet. 2010 Jun 12;375(9731):2110-9. doi: 10.1016/S0140-6736(10)60393-5. Epub 2010 May 18.
New vaccines are urgently needed if we want to reach the goal of substantially reducing the incidence of tuberculosis by 2050. Despite a steady increase in funding over the past decade, there is still a striking financial shortfall for vaccine research and development for tuberculosis. Yet, around ten vaccine candidates have left the laboratory stage and entered clinical trials. These vaccines are either aimed at replacing the present vaccine, BCG, or at enhancing immunity induced by BCG. However, these pre-exposure candidates are designed for prevention of disease and will therefore neither eradicate the pathogen, nor prevent stable infection. Long-term vaccination strategies need to target these more ambitious goals. Even though vaccine development will have a price, the return of investment will greatly exceed original costs.
如果我们想在 2050 年前实现大幅降低结核病发病率的目标,就急需开发新的疫苗。尽管过去十年间资金投入稳步增加,但结核病疫苗研发仍存在巨大的资金缺口。尽管如此,仍有大约十种候选疫苗已经脱离实验室阶段,进入临床试验。这些疫苗要么旨在替代目前的疫苗卡介苗(BCG),要么旨在增强 BCG 诱导的免疫。然而,这些暴露前候选疫苗旨在预防疾病,因此既不能根除病原体,也不能预防稳定感染。长期疫苗接种策略需要针对这些更具挑战性的目标。虽然疫苗开发需要付出代价,但投资回报将大大超过初始成本。
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