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Feline morbillivirus (FeMV) is a recently discovered morbillivirus of the family Paramyxoviridae, which include several highly contagious viruses with zoonotic potential. In this case report we describe the detection of FeMV in archived brain tissue of a 2‐month‐old Bengal cat with nonsuppurative encephalitis from the year 2011 in Switzerland by high‐throughput sequencing (HTS). Our metagenomics approach was able to obtain a full‐length sequence covering the entire FeMV genome. Phylogenetic analysis showed that our FeMV strain clustered within FeMV genotype 1. We were able to detect FeMV RNA by in situ hybridization (ISH) in brain sections with inflammatory lesions and demonstrated its potential neurotropism and association with encephalitis. Our results provide further insight into this recently discovered morbillivirus and encourage further investigations into the pathogenesis and epidemiology of associated diseases in cats and potentially other species. [ABSTRACT FROM AUTHOR]

[Display omitted] • This study is the first virome analysis in noble crayfish (Astacus astacus). • Bunya-like brown spot virus is a (-) ssRNA virus associated with a mass mortality event in white-clawed crayfish (Austropotamobius pallipes). • We detected the near full-length genome of a closely related bunya-like virus in noble crayfish without associated mortality. • Ten other RNA viruses (four hepe-like, two dicistro-like, three picorna-like, one permutotetra-like) were detected in the samples. European native crayfish populations are undergoing a strong decline due to environmental factors and the introduction of highly competitive non-native species. Pathogens are an additional threat to native crayfish. However, aside from the crayfish plague, other infectious diseases are still widely unknown. This study aimed to investigate viruses present in seven populations of wild noble crayfish (Astacus astacus) in Switzerland, through high-throughput sequencing. Sequence analysis revealed the presence of 11 novel RNA viruses (one bunya-like, four hepe-like, two dicistro-like, three picorna-like, and one permutotetra-like) in the samples. The discovery of a novel bunya-like virus in noble crayfish without associated mortality or macroscopical alterations is of particular interest since it is closely related to the bunya-like brown spot virus, a virus described in 2019 from diseased native white-clawed crayfish (Austropotamobius pallipes) during a mass mortality event in France. It seems that these two closely related viruses have very different impacts on their respective hosts, raising the need for further investigations on virulence factors and host susceptibility towards these viruses. This study provides a basis for future investigations, permitting to gradually fill the knowledge gap in crayfish viral diseases. [ABSTRACT FROM AUTHOR]