If they have it and get taken to any hospital it will be impossible to cover that up. There are some alternatives like secret government hospitals or just let them die in a private home somewhere.
Ebola!
It's festive.
It's like a parade with free buffet and jumping cheerleaders with pompoms and a band playing and a big silvery moon, with fireworks and party hats and streamers and cotton candy on a summer night by a glass-smooth lake as you hold the one you love in front of a roaring fire on a bearskin rug, while you overlook the mountains of Aspen from the deck of your expensive yacht.
It's like getting on a magic carousel ride with real ponies and free chicken wings and cheesy chips with running beer fountains on a sunny cloudless day with beautiful music playing!
Kittens!
Clouds!
Bunnies!