Smallpox and the Long Road to Eradication
"Until the 1870s any doctor wanting to vaccinate a patient against smallpox had to collect fresh, virus-laden pus or a dried scab from someone recently vaccinated."
Continue Reading"Until the 1870s any doctor wanting to vaccinate a patient against smallpox had to collect fresh, virus-laden pus or a dried scab from someone recently vaccinated."
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