coli infection, enterotoxigenic E. coli (ETEC) or Septicaemic Colibacillosis. Various serotypes of enterotoxigenic E. coli can cause either diarrhoea or septicaemia in very young calves (Kang et al., 2004; Gruenberg, 2014). Septicemic colibacillosis is a major cause of early calf deaths. The condition is often fatal or leads to post-septicaemic infections that are often non-responsiv
e to treatment. If an outbreak occurs, every effort should be made to isolate the affected calves immediately. ETEC cause diarrhoea in very young calves, less than 3 to 4 days of age (typically less than 48 hours of age). Calves are depressed, do not drink or suckle, become dehydrated, and die rapidly. Very profuse and watery diarrhoea is typical of ETEC scours. coli is widely distributed in nature, being present in soil, surface water, animal and human feces. coli produces septicemia and diarrhea in a wide range of hosts including man, avian and animals. Calves are the most vulnerable to E. Two age groups appear to be of calves of 1 to 3 days of age and of 3 to 8 weeks of old are more susceptible. Symptoms include diarrhea, a rise in body temperature, general weakness, dehydrated and lack of appetite. These symptoms are soon followed by coma and death within a few hours
