A 39-year-old healthy single mother from Utah died four days after taking a second dose of the Moderna COVID-19 vaccine on Feb. 1.According to local news channel KUTV, her family said that Kassidi Kurill, who was a surgical technician for plastic surgeons, “had more energy” than most people around her and was a happy person with no known health problems. “I didn’t really cry when my dad died. I cry a lot for her,” her father, Alfred Hawley, a former fighter pilot in the Air Force, told the outlet. “She was the one who promised to take care of me.”...