Dr. Adeline Fagan, 28, was starting her second year of residency in Houston as an OB/GYN when she got sick in July.
According to a GoFundMe page created by her family, Fagan was mostly at the hospital delivering babies, but was doing a rotation in the ER and treating COVID-19 patients.
"It is with great sadness that we have learned of alumna Adeline Fagan's passing. Adeline, a 2014 Saint Joseph's graduate and OB/GYN resident-physician, lived her life as a Hawk with and for others," the post said.
Her sister Natalie said, "When she walked across the stage, we were just beside ourselves, so proud because it was her dream."
Her sisters say she started feeling sick in July and battled the virus for two months. Her parents with her in Texas.
"My mom told me that when she had to leave, she said to Adeline, 'I love you.' And she kissed her and Adeline, as you know, as loopy as she was, made a kissy face back back at my mom," Natalie said.
Fagan was treated with several different respiratory therapies and drugs. She then decided to begin an experimental drug, according to her family.
Fagan experienced complications and was hooked up to oxygen machines for weeks.
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"Before we could see if this new drug was effective, her lungs could no longer support her," said her family in an update on Sept. 19.
Fagan's family says they're unclear when and where she was exposed to the virus.
Fagan is originally from Syracuse, New York.