From the National Zoo:
“We have the safety report on the Nov. 18 incident when a zebra seriously injured a veteran keeper. Gates were left unlocked (which is against protocol), allowing the zebra Gumu to enter the same space with the keeper. There were no engineering or mechanical failures, and the facility meets AZA standards.
Thanks to the heroic and quick-minded responses of staff and a volunteer keeper aide, the zebra was distracted and contained and the keeper was rescued from further injury. Gumu is fine. We continue to keep our colleague in our thoughts and wish him a speedy recovery.”
More details here.