Spores of the causative agent of American foulbrood disease in honey bee colonies are shown here. Paenibacillus larvae spores (seen here at 1000x) display brownian motion when the microscope slide is prepared with the hanging drop method. Acknowledgements: Organized, prepared slide: Michael E Wilson, University of Tennessee; videography & microscopy: Ernest Bernard, University of Tennessee; Review: Bart Smith, USDA-ARS Beltsville Bee Research Lab.

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