Smallpox is a special case because we don't need smallpox to make smallpox vacci... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

sanxiyn on May 14, 2011 | parent | context | favorite | on: Should Smallpox Be Put To Death?

Smallpox is a special case because we don't need smallpox to make smallpox vaccine. Smallpox vaccine is made from cowpox.

joelthelion on May 14, 2011 [–]

Is that really still the case today?

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact