[tialaramex]

> This is good news because if means a vaccine will work, and we won't need a yearly one - like the flu.

That's way ahead of the facts. It means we're more likely to be able to develop a vaccine that works and it's more likely we won't need frequent vaccination to be effective.

Vaccine success involves a certain amount of finger crossing, because it's a natural system rather than an engineered one that we're trying to tamper with. If you've ever boggled at a large spaghetti program, the human immune system makes that look like two dozen lines of clearly documented Java by comparison. None of it has to make sense because Mother Nature doesn't care why she only does results, and in the most brutal way possible.

This is why we've got a bunch of different vaccine programmes in different centres. Some of them might work, hopefully at least one does, and hopefully it produces an immunity that lasts a useful amount of time, has minimal side effects and is cheap to produce in bulk. But there aren't any promises without us having way more advanced biotechnology than exists anywhere today.