Organ-specific mosquito antiviral strategies. (A): In the Ae. aegypti system, DENV enters through blood meal and replicates inside the mid-gut. From the mid-gut, DENV is released to the hemolymph, salivary glands, and brain. (B): Inside the mid-gut epithelial cells, (1) RNA interference limits viral replication and (2) immune signaling pathways generate AMPs that block the virus inside the cells and also diffuse out to the hemolymph. (C): In the hemocytes, (3) complement-like factor AaMCR and its scavenger receptor AaSR-C interact with the signaling AMP production. (4) Phenoloxidase (PO) encapsulates DENV in the hemolymph. (D): In the neurons, AaHig binds to the envelop protein of the DENV as well as the cell membrane to block endocytosis. (E): In the salivary glands (5) extracellular cecropin-like peptides inhibit the virus and (6) intracellular cystatin and ankyrin repeat-containing protein (ARP) limit virus production.