“…10,12,15,16 Immediate and fulminating haemorrhagic enteritis is the main clinical manifestation, and severe congestion of the liver and intestines at necropsy. 12,[17][18][19] This is in marked contrast to the overwhelming pulmonary signs of severe acute dyspnoea reported both in this study and in earlier descriptive reports, seen in feline anaphylaxis. 2,[5][6][7][8] The main physiological effects of D immitis challenge in our experimental model are increased dyspnoea and reduced levels of blood O 2 saturation, expired CO 2 , and systolic blood pressure.…”