BBC: Nigeria cautions against travel via Ethiopia's main airport due to altitude
"...The foreign ministry in Abuja said 16 Nigerians with underlying health problems had died this year while transiting through Addis Ababa.
The city sits at an altitude of 2,334m (7,657ft) above sea level, making it one of the highest capitals in the world. Bole International Airport is a major hub for travel between Africa, the Middle East and Asia, serving millions of passengers a year...."
@ai6yr Cabin pressure altitude in most jets is higher than that. The newest jets hold about 6000 feet, but most of the fleet runs at or near the 8000 foot cabin pressure altitude limit.
So Addis Ababa being at about the same pressure altitude as inside most jets in flight doesn't compute for being the cause of death here. Something is missing here. I wonder what?