I can ABSOLUTELY confirm that. My mother lives in sheltered accommodation and I have spent the last two
years trying to exterminate them from her flat. They are very hard to get rid of completely and if I did manage that then no doubt she’d bring the next lot up from their communal hall. Once home, I then have the task of ensuring I haven’t got any on me. It is a real pain. Watched a programme a few years ago on pest control and it seems the ONLY way to get rid of them is to seal up a room and pump hot air in up to 60 degrees and burn the buggers to death.
Bug sprays work to a degree but you always miss a few. The babies are little specks.