She apparently died from sepsis shock.
NBC News: “Sepsis is the body’s extreme response to an existing infection somewhere in the body that can lead to rapid organ failure and death, according to the Centers for Disease Control and Prevention.”
From a December 18, 2018 Tweet by @NickMiroff:
“This is the US-Mexico border at Antelope Wells, NM, where Jakelin Caal and her father arrived arrived with a group of 163 on Dec 6. Hard to overstate how remote and isolated this place is. Hachita, the nearest US town, is 45 mi away. The only vehicles we’ve seen are Border Patrol.”