Hemorrhagic septicemia is an acute pasteurellosis

Pasteurellosis

Pasteurellosis is an infection with a species of the bacteria genus Pasteurella, which is found in humans and animals.Pasteurella multocida is carried in mouth and respiratory tract of several animals, notably cats. It is a small Gram negative bacillus with bipolar staining by Wayson stain...

, which occurs notably in cattle

Cattle

Cattle are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bos primigenius...

 and water buffalo

Water buffalo

The water buffalo is a domesticated bovid widely kept in Asia, Europe and South America.Water buffalo can also refer to:*Wild water buffalo , the wild ancestor of the domestic water buffalo...

, and to lesser degrees in other ruminant

Ruminant

A ruminant is a mammal of the order Artiodactyla that digests plant-based food by initially softening it within the animal's first compartment of the stomach, principally through bacterial actions, then regurgitating the semi-digested mass, now known as cud, and chewing it again...

s as well as other animals. It is caused by Pasteurella multocida bacteria, and can be rapidly fatal. It is "characterized by a sudden onset of high fever, dyspnea

Dyspnea

Dyspnea , shortness of breath , or air hunger, is the subjective symptom of breathlessness.It is a normal symptom of heavy exertion but becomes pathological if it occurs in unexpected situations...

, salivation, hot painful subcutaneous swellings and submucosal petechia

Petechia

A petechia is a small red or purple spot on the body, caused by a minor hemorrhage ."Petechiae" refers to one of the three major classes of purpuric skin conditions. Purpuric eruptions are classified by size into three broad categories...

e and death in about 24 hours."

See also

• Septicemia (presence of microorganisms in the blood}
• Avian hemorrhagic septicemia (pasteurellosis in birds and fowl)
• Viral hemorrhagic septicemia
  Viral hemorrhagic septicemia
  Viral hemorrhagic septicemia is a deadly infectious fish disease caused by theViral hemorrhagic septicemia virus...
  
  (unrelated viral infection of fish)