This isn't the dark ages though, and we are very well aware of its existence. Having it spread at a fast rate it extremely unlikely, and even then we know how to treat it.
Another case of fear mongering.
The only way it would be a real issue is if it airborne or even waterborne, but its neither. Its only spread via direct contact and the few people who do have it in the US are in quarantine and the ones treating him are suited up from receiving the virus too.