When I had mine done (granted, 5+ years ago) I had to get a prescription from my doctor.
Then a regular trip to the pharmacy.
If you're cool with it, you can give the shots to yourself. Or have your SO do it. (do it properly, as per instructions. I believe this shot has to go into muscle)
If not, you can get it done at your local medicenter.
I don't think pharmacy people will do it, since it has to be a registered nurse.
When the flu shots come around to pharmacies, they're registered nurses that do it. Not the almighty pill dispenser.
Edit: I would go see a doc about it anyways. They should be up to date with the latest and greatest deathly viruses taking the world by storm in various regions.
When I went to the Dominican, there happened to be a Malaria outbreak. I wouldn't have known, but my doctor did and gave me some meds to help prevent it.