From what I have read, you do start to get some protection from the Hep vaccinations within a couple weeks of getting the first one.
I highly recommend that you get them. I'm not a doctor, and this isn't medical advice. But, hepatitis can be pretty easy to get; even in the US there have been a couple cases in areas near me where a hundred people or whatever will get hep B from a grocery store that had one infected person.
Aside from the pain of getting a shot and a little soreness for a couple days, it seems like a good plan.
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