A very simple virus from Natal in South-Africa. It was written by a student, who claims to have no knowledge of how it "escaped". This virus, just like Kennedy, will only infect .COM files starting with a JMP statement (E9). Infected programs may occasionally display the following message when they are executed.
File infected by BLOOD VIRUS version 1.20
This variant does not really exist, as the only available sample is the result of an error in transmission between two virus researchers.