Desperately needed medical evacuations from Gaza \- already very limited – came to a full stop when Israel launched its military offensive on Rafah three weeks ago, the World Health Organization said on Tuesday. The United Nations health agency has long been pleading for Israeli permission to evacuate more critically ill and severely wounded people from Gaza. Thousands of Gazans are estimated to require urgent medical evacuation but few have been able to leave the besieged Palestinian territory since war erupted there nearly eight months ago. WHO spokeswoman Margaret Harris said that since Isr…