The deadly snake-transmitted virus created by the military in this movie is later revealed to be "The Satan Bug", which is also the name of a 1965 germ warfare movie starring Richard Basehart.
Major Manchek in "Venomous" must be related to the general of the same name from O Enigma de Andrômeda (1971), another virus thriller. Both movies also refer to "Directive 712", described in "Andromeda Strain" as the use of a nuclear detonation to prevent the spread of a virus.