Vesicles, the bubble-shaped vessels that transport molecules within cells, may hold the secret to halting viruses or even combating Alzheimer's, say experts who hailed Monday's Nobel awarded to three leaders in the field.

Thousands of these sac-like cargo vehicles reside in every human cell.

Their job is to transport molecules within and between cells.

Vesicles are crucial for the very functioning of cells -- shipping everything...read more here: Secrets of body's cell transportation system