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Neurodegenerative diseases, such as Creutzfeldt-Jakob, Parkinson’s and Alzheimer’s disease, involve the accumulation of proteins in the brain, which cause the formation of amyloid fibrils. Up until now, only prion diseases – also associated to amyloid plaques – were thought to be infectious. The University Heidelberg and the Pasteur Institute, in a tight collaboration with IPVC, have recently discovered that Rift Valley fever virus is also capable of forming amyloid-like fibrils in the brain. Their results were published on July 1^st 2020 in Nature Communications.