I'm an idiot, very fuzzy on my Cuba-Angola history, but I thought that Cubans had troops in Angola at one time...do you know, or does anyone, if they still are there? Because Luanda, Angolan capital, has Marburg cases, number unknown, and I know there's a flight direct from Luanda to Houston, how about from Luanda to Havana, too?
They did and may still have troops there as Angola was a plum for Cuba; someone may have better information concerning that. Isolation with standard precautions works.