August 10, 2020

Cause of Warmbier brain injury unknown, no sign of botulism: doctors
Warmbier in a state of "unresponsive wakefullness", according to medical staff

Update: Additional comments from medical team on significance of lack of botulism found in tests, included in text.

Doctors attending to the care of Otto Warmbier told media at a press conference on Thursday that they are unable to ascertain with certainty what caused the severe neurological injury he suffered in North Korea.