Bee Viruses
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Virus diseases of bees are spread throughout the world. They are usually undervalued by beekeepers: they can cause serious economic losses if associated with other bee diseases. All viruses are virtually present in apiaries in latent or asymptomatic form (i.e. no symptoms are visible in the hive). Triggering events, such as other hive diseases or stressful factors, can lead to the development of the infection and the death of bees or the destruction of colonies and / or the affected combs. Seasonal factors and the region where the apiary is located strongly influence the onset of honey bee viruses. To date, there are many identified and classified bee viruses but there is not enough information about their worldwide distribution.