Meanings of hemorrhagic septicaemia in English

What is haemorrhagic septicaemia?

Background: Viral hemorrhagic septicemia (VHS) is a serious viral disease that infects the olive flounder in South Korea.

This usually indicates an infectious disease of considerable severity, and occurs in blood poisoning, purpura hemorrhagica, hemorrhagic septicemia, and in urticaria.

At the present time vaccination has been found effective against blackleg, hog cholera, anthrax, lockjaw, strangles, rabies, hemorrhagic septicemia, white scours, etc.