The second point is that we want to require supplier quality assurance and implement a zero defects quality program.

第二点，我们要求供应商产品质量有保证，并实施零缺陷质量方案。

This is kind of along the lines of the quality assurance, quality control and process trials we rely on to ensure that our vaccines are safe and that they work.

这有点像我们所依赖的质量保证、质量控制和过程试验，以确保我们的疫苗安全且有效。