Gerald Early at The Common Reader:
On February 24, 1947, Eugene Le Bar began a bus trip from Mexico City that would take him to New York. By March 1, when he arrives in New York he was not feeling very well but went sightseeing nonetheless, coming in contact with lots of people. On March 10, he died in Willard Parker hospital from the rare but extremely deadly hemorrhagic smallpox. Only five percent of smallpox cases take this intensely virulent form, so it is not surprising that Le Bar’s case was originally misdiagnosed. Overall, twelve persons were infected with traditional, not hemorrhagic, smallpox (with a much higher survival rate) from Le Bar’s ring of contacts; two died. The infection rate was low because New York embarked on a mass vaccination effort to prevent the spread of the disease. Six million New Yorkers were vaccinated against smallpox in the spring of 1947, an enormous accomplishment by the local public health service employees and hospital personnel as shots were given around the clock to prevent an epidemic.
More here.
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