Article (Scientific journals)
Nationwide Screening for Bee Viruses and Parasites in Belgian Honey Bees.
Matthijs, Severine; De Waele, Valérie; Vandenberge, Valerie et al.
2020In Viruses, 12 (8)
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Keywords :
Belgium; DWV; Nosema; Varroa; honey bee parasite; honey bee virus; virus screening
Abstract :
[en] The health of honey bees is threatened by multiple factors, including viruses and parasites. We screened 557 honey bee (Apis mellifera) colonies from 155 beekeepers distributed all over Belgium to determine the prevalence of seven widespread viruses and two parasites (Varroa sp. and Nosema sp.). Deformed wing virus B (DWV-B), black queen cell virus (BQCV), and sacbrood virus (SBV) were highly prevalent and detected by real-time RT-PCR in more than 95% of the colonies. Acute bee paralysis virus (ABPV), chronic bee paralysis virus (CBPV) and deformed wing virus A (DWV-A) were prevalent to a lower extent (between 18 and 29%). Most viruses were only present at low or moderate viral loads. Nevertheless, about 50% of the colonies harbored at least one virus at high viral load (>10(7) genome copies/bee). Varroa mites and Nosema sp. were found in 81.5% and 59.7% of the honey bee colonies, respectively, and all Nosema were identified as Nosema ceranae by real time PCR. Interestingly, we found a significant correlation between the number of Varroa mites and DWV-B viral load. To determine the combined effect of these and other factors on honey bee health in Belgium, a follow up of colonies over multiple years is necessary.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Matthijs, Severine
De Waele, Valérie
Vandenberge, Valerie
Verhoeven, Bénédicte
Evers, Jacqueline
Brunain, Marleen
Saegerman, Claude  ;  Université de Liège - ULiège > Département des maladies infectieuses et parasitaires (DMI) > Epidémiologie et analyse des risques appl. aux sc. vétér.
De Winter, Paul J. J.
Roels, Stefan
de Graaf, Dirk C.
De Regge, Nick
Language :
English
Title :
Nationwide Screening for Bee Viruses and Parasites in Belgian Honey Bees.
Publication date :
2020
Journal title :
Viruses
eISSN :
1999-4915
Publisher :
Multidisciplinary Digital Publishing Institute (MDPI), Switzerland
Volume :
12
Issue :
8
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 03 September 2020

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