"And in terms of essential medications, by some estimates, 30 percent of all essential medications are at zero supply. By other estimates, for example, Medecins Sans Frontieres have done their own estimates, and they estimate that it's over 40 percent of essential medications at zero stock in Gaza." "Well, the siege is by Israel and its junior partner, Egypt. If Egypt didn't participate, for sure the siege wouldn't survive." (thanks Amir)