RT Journal Article SR Electronic(1) A1 Di Prisco, Gennaro A1 Pennacchio, Francesco A1 Caprio, Emilio A1 Boncristiani, Humberto F. A1 Evans, Jay D. A1 Chen, YanpingYR 2011 T1 Varroa destructor is an effective vector of Israeli acute paralysis virus in the honeybee, Apis mellifera JF Journal of General Virology, VO 92 IS 1 SP 151 OP 155 DO https://doi.org/10.1099/vir.0.023853-0 PB Microbiology Society, SN 1465-2099, AB The Israeli acute paralysis virus (IAPV) is a significant marker of honeybee colony collapse disorder (CCD). In the present work, we provide the first evidence that Varroa destructor is IAPV replication-competent and capable of vectoring IAPV in honeybees. The honeybees became infected with IAPV after exposure to Varroa mites that carried the virus. The copy number of IAPV in bees was positively correlated with the density of Varroa mites and time period of exposure to Varroa mites. Further, we showed that the mite–virus association could possibly reduce host immunity and therefore promote elevated levels of virus replication. This study defines an active role of Varroa mites in IAPV transmission and sheds light on the epidemiology of IAPV infection in honeybees., UL https://www.microbiologyresearch.org/content/journal/jgv/10.1099/vir.0.023853-0