The difference between observed and expected co-occurrence of 2 or more of the 8 enteropathogenic species in diarrhoeic cats. Bar plot of the difference in co-occurrence of 2 or more of the 8 enteropathogenic species in samples from cats with a documented history of diarrhoea, irrespective of what other species were present, compared to what would be expected as a product of each species’ individual occurrence. Only those co-occurrence combinations where either the number expected or observed was ≥3 are shown (37/219 (16.9%) possible co-occurrence combinations). The co-occurrence results are ordered left to right according to the number of species, in the order Co, Pa, Cl, Sa, Gi, Tr, Cr and To. The dark bars indicate statistically significant difference in observed minus expected with #P < 0.001. Numbers at the top of the graph indicate the number of enteropathogenic species.