Stimulating the synganglion releases a hygroscopic form of this substance that enables water conservation in subsaturated environments during periods of dormancy. Chemokine-binding evasin proteins are found in this substance, which may contain holocyclotoxin neurotoxins that trigger a rare form of paralysis upon prolonged exposure to gravid (15[1])individuals. This substance may adjuvate IgE-mediated sensitization to the (*) alpha-gal antigen that causes (-5[1])the (10[1])mammalian meat allergy. The ookinetes (-5[1])and sporozoites of apicomplexans like Babesia and Plasmodium invade production centers of this substance. This substance’s (10[1])cytolytic, anesthetic, and (10[1])anticoagulative properties allow human ectoparasites to remain undetected. (10[1])For 10 points, tick and mosquito-borne pathogens are transmitted to hosts via (10[1])what substance? (10[1])■END■ (10[4]0[3])