Table 1. Honey-bee pathogen incidence by colony status.

Pathogen	Present,non-CCD colony	Absent,non-CCD colony	Proportion present, non-CCD colony	Present,CCD colony	Absent,CCD colony	Proportion present, CCD colony	P-value
ABPV	30	33	0.48	31	30	0.51	0.722
BQCV	53	10	0.84	55	6	0.90	0.314
DWV	26	37	0.41	38	23	0.62	0.019
IAPV	10	53	0.16	15	46	0.25	0.225
KBV	8	55	0.13	23	38	0.38	0.001
SBV	9	54	0.14	16	45	0.26	0.096
NC	36	27	0.57	41	20	0.67	0.247
NA	6	57	0.10	20	41	0.33	0.001
Crithidia	49	14	0.78	53	8	0.87	0.182

Values are the number of colony samples (n = 61 for CCD and n = 63 for non-CCD) in which the pathogen was detected at any level. The likelihood ratio chi-square test of contingency was used to compute the probability of equal pathogen incidence in CCD and non-CCD colonies. ABPV = acute bee paralysis virus; DWV = deformed wing virus; SBV = sacbrood virus; BQCV = black queen cell virus; IAPV = Israeli acute paralysis virus; KBV = Kashmir bee virus; NC = Nosema ceranae; NA = Nosema apis.