Once ingested in a blood meal, the virus needs to pass through the mosquito midgut to infect the salivary glands before being transmitted to the next human host. However, the mechanism enabling ...

He subsequently developed dyspnea on exertion. Diagnosis. Carcinoid tumor of midgut origin with large segment 3 liver metastasis. Carcinoid syndrome and carcinoid heart disease. Management.

Biological scientists have uncovered how the dengue virus uses its envelope protein to capture human plasmin from a blood meal to enhance the permeability of the mosquito midgut for infection.

This is because specific pH levels, enzymes, and midgut receptors are required to activate and bind a given Cry toxin to midgut cells, which leads to pore formation in the insect's intestine and ...