The Daily Star's FREE newsletter is spectacular! Sign up today for the best stories straight to your inboxA fit-and-healthy young student who caught Covid-19 only days before Christmas has died after the virus "ate her through".Sarah Simental died within days of being infected with the killer bug, her heartbroken family have revealed.The high school senior, from Chicago, US, had told her now-grieving mum that she would miss her over the festive period.Mourning mother Deborah told ABC: "She called me up crying to say that, you know, 'Mom, I’m going to miss Christmas'."And I had to reassure her that it’s just a day on the calendar, and when she comes home, 'We’ll do Christmas with you.' Unfortunately, she didn’t [leave the hospital]."The.