It's not common in any country, it's a fringe biohacker kind of thing. There's a small group in the US that does this kind of thing: https://en.wikipedia.org/w

It's not common in any country, it's a fringe biohacker kind of thing. There's a small group in the US that does this kind of thing: https://en.wikipedia.org/wiki/Grindhouse_Wetware https://en.wikipedia.org/wiki/Grindhouse_Wetware