Like you said, there seem to be arguments/research going both ways. We try to be smart about it by choosing a restaurant that we know, with good reviews that are up to the required standards for raw fish. We also make sushi at home fairly often. We buy our fish from a small fresh seafood market that we trust, who gets his fish from the boat to the store in less than 24 hours, and can tell you what boat, in what ocean, and how many people touched it. That's another option. That way you know just how it's been handled and prepared. For us, it's a risk we are willing to take, but we also drink raw milk from our cow, which according to most people is an even bigger no-no!
Happy Birthday, hope it's lovely, whatever you decide.
“above all things have intense and unfailing love for one another, for love covers a multitude of sins ” 1 peter 4:8