Ah, our oldest companions. Traces of bed-bug have been found amongst Neanderthal remains. I guess one of their survival strategies has been that they are not any known disease vector. Ensure your host remains available. They'd probably have been fully paid up members of CND if only they could have read the pamphlets.
I haven't seen any putative explanation for why the out-break in Paris has reached such spectacular levels though EC restrictions on Pesticides, Budgetary restraints and that French inclination to ignore anything that doesn't have a significant impact on
moi may all be contributors.
Anyone interested in male urine traces in free peanut bowls in bars; poo traces on New York subway seating or why you should never drink the freshly squeezed orange juice in the
djemaa el fna, marrakech: the Internet is your friend...
I expect the source will eventually be traced to a Pilgrim who failed to spray their Backpack & sleeping bag with Permethrin but thats an explanation available to the public enquiry that will no doubt be held in a decade or so and probably not in Paris.
Me? I just smile at the thought that, recently at least, humanity is faced with the shocking revelation that bed-bugs are not unique to the Albergues of the
Camino Frances (Frances! Ah, that explains it!!)