Yes, it seems to be to all of them, although some are better then others. (Lats nearly sent me to the ER last year...) I've had a very positive prick test at the allergists for cockroaches in general so it's not a big surprise but it is a major disappointment. I've tried setting up the enclosures in multiple ways and with differing substrates, but it's been steadily getting worse since I got my first hissers three years ago. I don't really have a choice on the dubia since they're my scorpion's primary food source, and for now will be keeping the hybrid hissers for the same reasons since the dubia colonies are still gaining speed, but they may very well have to go as well. I could handle it if it was just a skin reaction, but they've become a severe asthma trigger.