it's important to make clear that what make the vacine being reject was not because of this number. The problem is that they remove the dna part of the virus that allow it to replicate once injected. But in all samples that they tested, in multiple batchs, they found replicant Adenovirus, that could make people who received the vacine sick.

That said, this is not a total rejection of the vacine. This is a rejection of the batches that where going to be imported. There are plan to produce this vacine in Brazil, and this batches could be approved in the future, if they did not find the same problems.