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. 2020 Sep 22;7(3):142. doi: 10.3390/vetsci7030142

Table 3.

List of medical issues in two honey bee colonies infected with Chronic Bee Paralysis Virus (CBPV) in 2019.

Colony 1 Colony 2
for both colonies:
  • -

    hairless, black bees

  • -

    smaller bees with shortened abdomens

  • -

    atactic, crawling and trembling bees

  • -

    bees with bloated abdomens

  • -

    large number of dead bees in front of the hives

  • -

    positive PCR result for CBPV (Colony 1: ++++ (Ct = 13.45), Colony 2: ++++ (Ct = 13.08))

moderate infestation of Nosema spores slight infestation of Nosema spores
loss of the queen
laying worker bees and large number of drones
other viruses (without symptoms):
DWV-B, BQCV, ABPV (exact Cts in Table 1)		 other viruses (without symptoms):
DWV-B, BQCV, ABPV (exact Cts in Table 1)

Legend: DWV = Deformed Wing Virus, BQCV = Black Queen Cell Virus, ABPV = Acute Bee Paralysis Virus, Ct = threshold cycle