The student paper said she died from ‘pneumonia complications’ A 19-year-old Northwestern University student died on June 11, two months after she received her first dose of the Moderna COVID-19 vaccine and a month after receiving the second dose. While her doctors have not fully confirmed the cause of her death, it appears that Simone Scott (right) suffered from myocarditis, an inflammation of the heart muscles. Northwestern Memorial Hospital’s doctors were able to obtain a new heart for Scott, but that lasted less than one week.