The reality is that pretty much every temperate to warm country will have bed bugs. So you’ll find bed bugs in Thailand, bed bugs in Australia, bed bugs in the USA – the list goes on. Basically every continent except Antarctica has bed bugs!
It’s also a worsening problem it seems as we are travelling more and more, and our climate seems to be providing warmer days. These two factors combine to produce the ideal conditions for bed bugs to spread, and for bed bugs to breed!