​Any hint of inoculation of course raises the interest of a medical historian :-)  But I am sure you were not speaking technically. ​

​This is a fork in the conversation, but there are passages in the ayuvedic literature where the authors worry about the issue of poisonous caterpillars, and how it is that the caterpillars don't poison themselves or their offspring.  It's a good question, I think.

Best,