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A “healthy” 13-year-old boy has become the UK’s youngest coronavirus victim — dying alone because of strict isolation procedures, according to reports.

Ismail Mohamed Abdulwahab died on Monday after being rushed to King’s College Hospital close to his home in south London four days earlier after suffering breathing difficulties, the Sun says.

His family said they were “beyond devastated” at his death after he was put into an induced coma because of the severity of his condition after testing positive for COVID-19, the report said. “To our knowledge he had no underlying health conditions,” the family said in a statement, according to the UK paper.

Family friend Mark Stephenson — who by Wednesday morning had raised more than $73,600 in an online fundraiser for the family — said the boy’s mother and six siblings were unable to be with him because of the risks of the virus spreading.

“One of the saddest things in this whole situation is that he died alone,” Stephenson told ITV’s “Good Morning Britain” of the youngster.

“When someone has this infection, they’re in isolation so how difficult it is for a mum to not be with her son at this time when he’s sick.

“Usually a mother will be at his bedside, staying overnight in the hospital.”

Stephenson’s fundraiser had aimed to get around $5,000 to help with funeral costs — but soon got almost 15 times that amount from people so overwhelmed at the tragedy.

“Just pause and reflect how devastating that is on his family who will probably never recover,” London’s mayor, Sadiq Khan, told the UK TV show.

King’s College Hospital confirmed that “a 13-year old boy who tested positive for COVID-19 has passed away,” saying, “Our thoughts and condolences are with the family at this time.”

On Tuesday, officials in Belgium confirmed a 12-year-old girl died after testing positive for COVID-19 — making her Europe’s youngest known victim.

England’s deputy chief medical officer, Dr. Jenny Harries, said Wednesday that it “is the case very sadly that young people can still be affected” by coronavirus.

With Post wires