A 74 year old man presented in October 1990 with a two year history of intermittent diarrhoea and weight loss.

Symptoms include nausea, bloating, excess gas, fatigue and intermittent diarrhoea.

Heavy infections are associated with poor thriving and intermittent diarrhoea, and in buffalo calves particularly, fatalities may occur.

Stomach pain, bloating, belching, intermittent diarrhoea.

In chronic infections, which occur primarily in sheep, inappetence and emaciation with intermittent diarrhoea and anaemia are the main signs of oesophagostomiasis.