The New York Times reported on August 26 that more than 1.2 million doses of polio vaccine arrived in Gaza as part of an effort to vaccinate more than 640,000 Palestinian children with the aim of preventing an outbreak of the potentially paralyzing disease, but Israel’s continued military campaign and blockade of humanitarian aid poses an obstacle to the vaccines being distributed. One case of paralytic polio has been confirmed in a 10-month-old child in Gaza who became paralyzed in one leg, which was the first case of polio in Gaza in a quarter-century. Last week, the...