Simone Scott, a 19-year-old freshman at Northwestern University in Evanston, Ill., died June 11 of complications from a heart transplant she underwent after developing what her doctors believe was myocarditis following her second dose of the Moderna COVID vaccine.

Scott received her second dose of Moderna on May 1, WLWT 5 reported. When the 2020 Mason High School graduate and senior class vice president paid a surprise visit to her parents for Mother’s Day, May 9, her mother said she noticed Scott wasn’t feeling well.

“I did notice she was kind of stuffy so her voice wasn’t exactly the same,” Valerie Kraimer said. Read more from The Defender.