ETIDIOH - NEW

Abstract Understanding wildlife-pathogen interactions is crucial for mitigating zoonotic risk . Through meta-transcriptomic sequencing we profiled the infectomes of 1,922 samples from 67 mammalian species across China , uncovering a remarkable diversity of viral, bacterial, fungal, and parasitic pathogens. Of the 195 pathogens identified , 62 were novel , including a bi- segmented coronavirus in diseased lesser pandas, which we propose represents a new genus – Zetacoronavirus . The orders Carnivora and Rodentia exhibited the highest pathogen diversity and were implicated in numerous host-jumping events. Comparative analysis of diseased versus healthy animals revealed a trend of higher pathogen loads in the former, with possible differences in tissue tropisms. In total, 48 zoonotic and 17 epizootic pathogens were identified, with frequent cross-species transmission , emphasizing the potential for emerging public health threats. This study highlights the urgent need for wildlife pathogen...

Abstract In recent years, infection cases of H5 subtype highly pathogenic avian influenza viruses (HPAIVs) in wild mammals have increased globally. To obtain recent epidemiological information regarding influenza A virus (IAV) infection in raccoons (Procyon lotor), the prevalence of anti-IAV antibodies in sera was analyzed among raccoons captured in Tokachi District, Hokkaido, Japan , from 2019 to 2023. Screening of serum samples using enzyme-linked immunosorbent assay and agar gel precipitation test detected anti-IAV antibodies in 5 of 114 (4.4 %) raccoons. All positive sera were from raccoons captured from 2022 to 2023. The hemagglutination inhibition test revealed that all five serum samples contained anti-H5 subtype HPAIV antibodies, and one also contained anti-H1 subtype antibodies . The neuraminidase inhibition test revealed that all five sera contained anti-N1 subtype antibodies, and one also contained anti-N8 subtype antibodies . In the virus neutralization test, these five ser...

Summary   H5Nx A/Goose/Guangdong/1/96 Eurasian lineage high pathogenicity avian influenza (HPAI) viruses have been the main HPAI strains detected globally since 2005. These have spread around the world, causing a panzootic that has spanned six continents , with continual threat to not only wild and captive birds and poultry, but also wild, captive and domestic mammals and humans . The viruses’ ecology and epidemiology – especially the 2.3.4.4b clade – have changed, with over 489 species of birds infected and spreading the virus over migratory routes . This results in the death of many birds, including endangered species , and serves as a source of transmission to poultry and mammals . Improved surveillance and sharing of HPAI virus sequences, metadata and viruses across the veterinary, public health, wildlife and environment sectors are needed to elucidate the population dynamics of the infections, which is crucial to addressing this complex One Health issue . The development of ap...

Abstract The repeated emergence of pandemic viruses underscores the linkages between land-use change and wildlife disease , and urban-adapted wildlife are of special interest due to their close proximity to humans . However, viral diversity within urban-adapted species and their zoonotic potential remain largely unexplored. We compiled a large dataset on seven priority urban-adapted mammal species and their viruses covering over 115 countries from 1574 to 2023. These urban-adapted species host 286 virus species spanning 24 orders and 38 families , 14 of which are potentially high risk for human infection. Raccoons carried the most high-risk viruses, while raccoon dogs had increased viral positivity in urban habitats compared to raccoons, wild boars , and red foxes . Many viruses in urban-adapted species were phylogenetically related to those found in humans, and we also observed evidence of possible viral spillback . These results highlight zoonotic risks associated with urban-adapted ...