As the Israel-Hamas war rages, medical mercy flights give some of Gaza's most vulnerable a chance at survival

Gaza's Hamas-run Health Ministry says the war with Israel has killed nearly 20,000 people. It has also hammered the Palestinian territory's health care system. A World Health Organization official said Thursday that in the decimated northern half of the enclave, there were "actually no functional hospitals left."  

Even in the south, most hospitals are overcrowded and many have been heavily damaged. But for the vast majority of patients, including civilians caught in the crossfire, there is no way out of Gaza. But the United Arab Emirates has pledged to evacuate up to 1,000 injured children and 1,000 cancer patients by plane.