it is concluded that a virus which may be called `` '' alastrim '' '' represents a `` '' fixed '' '' variant of variola virus , whose distribution is consistent with the dramatic spread of variola minor through the americas and europe in the early part of this century , and that variola minor in africa in recent years was due to variola virus which was not alastrim and which laboratory evidence fails to identify as an entity distinguishable from variola major virus .
C0001737
af
C0040363
il