transstadial

transstadial

(trăn-stā′dē-ăl) Pert. to the passage of an infection from one developmental stage of an organism to another, e.g., from the larval to the nymph stage or from the nymph to the adult. Some important infections transmitted to humans from parasitized arthropods are acquired by the arthropod when it is immature and then are passed transtadially to more mature forms, which subsequently feed on humans.