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I wonder about this hope for a vaccine, and if it is a reasonable thing to base policy on. There is still no vaccine for HIV, after several decades of trying and many billions spent. None for SARS1, Mers, the commom cold. There are influenza vaccines, but still no effective ones in terms of preventing a significant number of deaths every year.

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Common cold: not worth it, and is caused by a lot of different viruses, making vaccination even harder.

SARS1: the virus was eradicated before trials could complete.

MERS: There are several vaccines in testing, however MERS comes and goes randomly, so it takes a lot of time to gather events.

HIV: Apparently there's a trial in Uganda going on since quite a while, which looks better than the past ones (which were failures), but with HIV, it takes years to see if it works or not

That said, betting all your options on a vaccine is not what I'd call sound policy. In fact, there are several drugs in the pipeline, but few if any report that.

For HIV there’s medication which practically guarantees you cannot become infected and there’s medication which will practically guarantee you will not get ill and cannot infect others.

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