Big if true.
Sure cleanliness can also help prevent the spread of disease, but so can vaccines. The bubonic plague today can easily be cured by getting antibiotics, but in England and across Europe it was a death sentence to whoever got it. Isn’t it great that the advancements in modern medicine turned what was once humanity’s greatest killer into a curable ailment? Even if you used sanitation, there are still people that die of the Bubonic plague to this day in America. It’s rare, but it’s not non-existent.
[–] 18763244? ago
[Citations needed.]