Table 1.

Virus titres detected in two honey bee colonies in May 2019.

Virus	Titres for Colony 1	Titres for Colony 2
CBPV	++++ (Ct = 13.45)	++++ (Ct = 13.08)
DWV-B	+++ (Ct = 25.31)	+++ (Ct = 23.10)
BQCV	++++ (Ct = 18.27)	+++ (Ct = 27.56)
ABPV	+ (Ct = 34.65)	- (N/A)

Legend: CBPV = Chronic bee paralysis virus, DWV = Deformed wing virus, BQCV = Black Queen Cell Virus, ABPV = Acute bee paralysis virus, Ct = threshold cycle; classification of Ct: ++++, Ct < 20; +++, 20 ≤ Ct < 28; ++, 28 ≤ Ct ≤ 32; +, 32 < Ct ≤ 35; (+), Ct > 35; N/A, no evidence.