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Since he left Gaza, his colleague told him the ICU had been "constantly full" and "overwhelmed", with doctors having to ration care because so many patients need intubation.

The ICU treatment may include intubation and oxygen therapy, fluid replacement and use of medications to lower blood pressure.

He had then spent 10 days in ICU fighting for his life.

"But we saw other families in ICU - dads and family members coming in in their work clothes and I really felt for those families."

“When somebody comes in for a procedure, they’re not expecting to go home with a life-threatening illness or having spent time in an ICU from a hospital infection.”