Private businesses aren’t stupid; they don’t need the government to order them to keep lepers away. And if a particular church, say, wants to open its doors to such a person, that’s perfectly within their rights.
Indeed, the final repository for such people would be buildings where the owners thought they could safely contain the disease. And the common name people would use for these buildings is “hospital.” In a free society, to be “quarantined” would simply mean that most owners (of roads, sidewalks, malls, hotels, factories, etc.) would refuse access, and so a contagious person would have few choices outside of treatment facilities. FULL ARTICLE