translation.en: So right now, the world can produce about 350 million doses of flu vaccine for the three strains, and we can up that to about 1.2 billion doses if we want to target a single variant like swine flu.
translation.zh: 现在全球能生产 3.5亿剂 3种流感病毒的疫苗。 我们能提产到12亿剂疫苗。 如果我们只生产一类病毒的疫苗 例如猪流感。