Mario Buelna, a healthy 28-year-old father, caught a fever and started having trouble breathing in June. He soon tested positive for COVID-19.
Weeks later, after what had seemed like a recovery, he felt weak and started vomiting. At 3 a.m. on Aug. 1, he passed out on the floor of his home in Mesa, Arizona.
Paramedics rushed him to a nearby hospital, where doctors put him in intensive care after saving him from a coma. They told him he could have died. Their diagnosis — type 1 diabetes — stunned and frightened him. He had no history of the disease.
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