All Palestinian surgeon Bashir al-Hourani has to work with in the central Gaza school, where he helps run a field clinic amid Israel’s pounding offensive, is gauze and disinfectant as he treats walking wounded turned away from overstretched hospitals.

“We don’t have anything else,” he said, showing a bottle of iodine he was using to wash the long operating scar running down the torso and stomach of an injured man.

“This patient should be in hospital but because of overcrowding he was transferred to the field hospital,” he said.

“We have dozens like this patient. We have children it’s hard to treat. We change their dressings one day and the next we find infection because there is no sterilisation, there are no specialised places. There are no bin bags,” he said.

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