1. Fenner, F., Henderson, D.A., Arita, I., Jezek, Z. & Ladnyi, I.D. Early efforts at control: variolation, vaccination, and isolation and quarantine. in History of International Public Health, No. 6 (eds Fenner, F., Henderson, D.A., Arita, I., Jezek, Z., Ladnyi, I.D.) 245–276 (World Health Organization, Geneva, 1988).
2. Plotkin, S.L. & Plotkin, S.A. A short history of vaccination. in Vaccines 4th edn (eds. Plotkin, S.A. & Orenstein, W.A.) 1–15 (W.B. Saunders, Philadelphia, 2004).
3. Fenn, E.A. Pox Americana: The Great Smallpox Epidemic of 1775-82. 1 (Hill and Wang, New York, 2001).
4. Pasteur, L. De l'attenuation du virus du cholera des poules. C. R. Acad. Sci. Paris 91, 673–680 (1880).
5. Pasteur, L., Chamberland, C.-E. : Sur la vaccination charbonneuse. C. R. Acad. Sci. Paris 92, 1378–1383 (1881).