Bee parasitic mite syndrome is a disease complex of colonies simultaneously infested with Varroa destructor
mites and infected with viruses and accompanied by high mortality. By using reverse transcriptional
PCR (RT-PCR), W′ve out of seven bee viruses were detected in mite samples (V. destructor) collected from
Korea. Samples of Varroa destructor samples were collected at the end of summer following acaricide
treatment. In Varroa destructor mites, during the year viruses were found at least sevevn viruses (DWV,
IAPV, KBV, CBPV, SBV, CWV, BQCV) of the apiaries. The latter findings support the putative role of
mites in transmitting these viruses. Taken together, these data indicate that bee virus infections occur
persistently in bee populations despite the lack of clinical signs, suggesting that colony disease outbreaks
might result from environmental factors that lead