Zombie Outbreaks and Anna Corinina Virus

They used to start in Haiti.

For a time, they came from an army lab in greater Pittsburgh.

Now they always originate in China.

What do they have in common?  Right, they are from cultures alien to the Western experience.  With a dab of xenophobia/racism, or course.  Black former slaves that are also somehow French.  Treacherous Oriental types from the literal other side of the world.  And Pittsburgh.