Nearly Invisible Fish-Killing Pathogens Found in Brazil for the First Time

Source Summary

Pathogens that cause columnaris disease, previously found only in Asia and the United States, were identified in samples from São Paulo, Minas Gerais, and Paraná. A nearly transparent bacterial colony can be easy to miss under a microscope. Yet identifying it matters for fish farms, where columnaris disease can damage the skin and gills of [...]