I don't like to stereotype an entire nation, especially one with around 20 million people, but I've had two personal experiences that for me anyway have put doubts into my mind.
I punt fairly frequently, averaging around four a month over the last couple of years. I've also had a fortunately healthy life, I rarely get sick and if I do its a man flu that lasts a couple of days, treated with lemsip and sometimes paracetamol or ibuprofen.
In Dec 2013, I had a punt with a Romanian WG - fully protected sex, no RO, no FK, OWO I think. Immediately after this punt I got very sick, a severe flu that had me bed ridden and on antibiotics for over a week.
In 2014 and 2015, I had no Romanian punts - personal preference that I prefer Polish, Hungarian or British WG's and Masseuses. Never got sick during this period at all.
This month, Jan 2016, I had a punt with a well reviewed Romanian WG (I won't specifically mention who as I don't want to slander her based on my unscientific logic and unfounded claim) and I got very sick immediately after this, again fully protected sex, but this one had RO, FK and OWO. Same illness as last time, flu like symptoms, essentially bed ridden for a few days, taking a combination of antibiotics.
Whatever it was, i'm finally on the mend and have no desire to see a Romanian WG again.