Investigation of an atypical case of European foulbrood in France

Roy, C.; Franco, Stephanie

doi:10.1002/vrc2.45

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…Since then, the occurrence persists, but with a very low prevalence [74]. In contrast, in some countries such as England [75], France [76], and Switzerland [77], bacterial disease very often occurs. These two bacterial diseases are very infectious and can cause great economic losses.…”

Section: Discussionmentioning

confidence: 99%

Screening of Honey Bee Pathogens in the Czech Republic and Their Prevalence in Various Habitats

Mráz

Hýbl

Kopecký

et al. 2021

Insects

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Western honey bee (Apis mellifera) is one of the most important pollinators in the world. Thus, a recent honey bee health decline and frequent honey bee mass losses have drawn attention and concern. Honey bee fitness is primarily reduced by pathogens, parasites, and viral load, exposure to pesticides and their residues, and inadequate nutrition from both the quality and amount of food resources. This study evaluated the prevalence of the most common honey bee pathogens and viruses in different habitats across the Czech Republic. The agroecosystems, urban ecosystems, and national park were chosen for sampling from 250 colonies in 50 apiaries. Surprisingly, the most prevalent honey bee pathogens belong to the family Trypanosomatidae including Lotmaria passim and Crithidia mellificae. As expected, the most prevalent viruses were DWV, followed by ABPV. Additionally, the occurrence of DWV-B and DWV-C were correlated with honey bee colony mortality. From the habitat point of view, most pathogens occurred in the town habitat, less in the agroecosystem and least in the national park. The opposite trend was observed in the occurrence of viruses. However, the prevalence of viruses was not affected by habitat.

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Section: Discussionmentioning

confidence: 99%

Screening of Honey Bee Pathogens in the Czech Republic and Their Prevalence in Various Habitats

Mráz

Hýbl

Kopecký

et al. 2021

Insects

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“…PCR [ 3 , 49 ] and real-time PCR [ 45 ], which rapidly and easily distinguish atypical strains from typical strains, will be useful in these studies. In previous studies [ 25 , 57 ], the terms “atypical EFB cases”, “atypical EFB outbreak”, or “atypical form of EFB” have been used. However, these atypical cases do not mean cases caused by atypical strains.…”

Section: Global Distribution Of Atypical M Plutoniusmentioning

confidence: 99%

Atypical <i>Melissococcus plutonius</i> strains: their characteristics, virulence, epidemiology, and mysteries

Takamatsu

2023

The Journal of Veterinary Medical Science

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Melissococcus plutonius is a Gram-positive lanceolate coccus that is the causative agent of European foulbrood, an important bacterial disease of honey bee brood. Although this bacterium was originally described in the early 20th century, a culture method for this bacterium was not established until more than 40 years after its discovery due to its fastidious characteristics, including the requirement for high potassium and anaerobic/microaerophilic conditions. These characteristics were considered to be common to the majority of M. plutonius strains isolated worldwide, and M. plutonius was also thought to be genetically homologous or clonal for years. However, non-fastidious variants of this species (designated as atypical M. plutonius ) were very recently identified in Japan. Although the morphology of these unusual strains was similar to that of traditionally well-known M. plutonius strains, atypical strains were genetically very different from most of the M. plutonius strains previously isolated and were highly virulent to individual bee larva. These atypical variants were initially considered to be unique to Japan, but were subsequently found worldwide; however, the frequency of isolation varied from country to country. The background of the discovery of atypical M. plutonius in Japan and current knowledge on atypical strains, including their biochemical and culture characteristics, virulence, detection methods, and global distribution, are described in this review. Remaining mysteries related to atypical M. plutonius and directions for future research are also discussed.

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Investigation of an atypical case of European foulbrood in France

Cited by 2 publications

References 8 publications

Screening of Honey Bee Pathogens in the Czech Republic and Their Prevalence in Various Habitats

Screening of Honey Bee Pathogens in the Czech Republic and Their Prevalence in Various Habitats

Atypical <i>Melissococcus plutonius</i> strains: their characteristics, virulence, epidemiology, and mysteries

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