Table 5.

Effects of circumstances on infection status.

Variables	Categories	OR (95%CI)	p
Intercept		0.08 (0.05–0.11)	<0.01
Circumstances	Abnormal behaviour	5.44 (2.21–12.57)	<0.01
	Entanglement	0.23 (0.07–0.59)	<0.01
	Grounded	3.53 (2.14–5.89)	<0.01
	Found dead single	0.41 (0.07–1.40)	0.23
	Mass mortality/morbidity event	0.33 (0.02–1.58)	0.28
	Orphaned	1.76 (0.58–4.45)	0.27
	Other	0.98 (0.28–2.58)	0.96
	Pet contact	0.12 (0.04–0.26)	<0.01
	Unspecified	1