> We are now into the higher risk period of lungworm disease in cattle As we are now into the higher risk period of lungworm disease in cattle, we are writing to make colleagues aware of the diagnostic options, importance of correct treatment and the investigation of possible inefficacious treatments. Parasitic bronchitis, due to Dictyocaulus viviparus, can occur in grazing cattle of all ages. Clinical disease is characterised by coughing that may be accompanied by increased respiratory rate and effort, respiratory distress, milk drop and reduced weight gain/weight loss. Clinical signs are seen two to four weeks after the ingestion of infective larvae by non-immune cattle. Diagnostic testing for lungworm in live cattle is …