Resource Library
Powered by Dorland's Medical Dictionary for Healthcare Consumers |
||||||||
|
||||||||
|
||||||||
vaccinia virus a species of orthopoxvirus that does not occur in nature and has been propagated for many years only in the laboratory for use as an active vaccine against smallpox. The present virus is derived from the original one used by Jenner, obtained from the lesions of cowpox, but the origin of the original virus remains unclear.
|
||||||||
|








