You already answered your own question, but you haven't figured out that vectors were half the problem. You also haven't figured out that once you remove one vector, the problem becomes less of an issue.
Your 10 siblings in a communist country didn't have the issues because the vector for infection was broken where you were living. This is why if you go to Haiti you can get polio, but if you cross over to the Dominican Republic your chance of getting it is less than 0.1%
Your basic lack of understanding for transmissibility aside, and the fact that cleaner sewage helps doesn't remove the fact that transmissibility points were always the primary issue. Though it also helps when the large swath of the population already has herd immunity - something even communist countries figured out was far cheaper to implement then actual health and sanitation measures.
FYI neither malaria or smallpox were wiped out in North America by sanitation. It was mass draining of swamps to kill the mosquitos that carried it(as far north as central Quebec), and vaccines that wiped out smallpox.
You already answered your own question, but you haven't figured out that vectors were half the problem. You also haven't figured out that once you remove one vector, the problem becomes less of an issue.
Your 10 siblings in a communist country didn't have the issues because the vector for infection was broken where you were living. This is why if you go to Haiti you can get polio, but if you cross over to the Dominican Republic your chance of getting it is less than 0.1%
Your basic lack of understanding for transmissibility aside, and the fact that cleaner sewage helps doesn't remove the fact that transmissibility points were always the primary issue. Though it also helps when the large swath of the population already has herd immunity - something even communist countries figured out was far cheaper to implement then actual health and sanitation measures.
FYI neither malaria or smallpox were wiped out in North America by sanitation. It was mass draining of swamps to kill the mosquitos that carried it(as far north as central Quebec), and vaccines that wiped out smallpox.
You misunderstood. My 10 siblings were born and raised in America except one.
Just fucked your argument up didn't I