Facts about smallpox : its means of spread, symptoms of smallpox, results of smallpox, influence of vaccination on smallpox, who should be vaccinated... / North Carolina State Board of Health in co-operation with the United States Public Health Service.

Public Domain Mark

You can use this work for any purpose without restriction under copyright law. Read more about this licence.

Credit

Facts about smallpox : its means of spread, symptoms of smallpox, results of smallpox, influence of vaccination on smallpox, who should be vaccinated... / North Carolina State Board of Health in co-operation with the United States Public Health Service. Public Domain Mark. Source: Wellcome Collection.