The man sought care last week after missing a week of work due to illness. He came to the hospital to ask doctors to authorize him to go on long-term sick leave.
At the time, doctors didn’t find the man to be suffering from any serious illnesses, according to the hospital.
But a few days later he was found dead in his home, located in the north of Örebro County in central Sweden.
A subsequent autopsy revealed that the man had suffered from a heart attack and had signs of a respiratory infection. He also tested positive for the A/H1N1 virus.
“The man is judged to have died from a heart attack in connection with influenza,” Örebro hospital said in a statement, adding that the man didn’t belong to any known group deemed to have an increased risk of becoming infected with a serious case of the swine flu.
The hospital said it was waiting to release more details about the incident until a press conference scheduled for later on Tuesday afternoon.