Virome in healthy pangolins reveals compatibility with multiple potentially zoonotic viruses

Abstract

Previous studies have identified multiple viruses in dead or severely diseased pangolins, but descriptions of the virome in healthy pangolins are lacking. This poses a greater risk of cross-species transmission due to poor preventive awareness and frequent interactions with breeders. In this study, we investigated the viral composition of 34 pangolins with no signs of disease at the time of sampling and characterized a large number of arthropod-associated viruses belonging to 11 families and vertebrate viruses belonging to eight families, including those with pathogenic potential in humans and animals. Several important vertebrate viruses were identified in the pangolins, including parvovirus, pestivirus, and picobirnavirus. The picobirnavirus was clustered with human and grey teal picobirnaviruses. Viruses with cross-species transmission ability were also identified, including circovirus, rotavirus, and astrovirus. Our study revealed that pangolins are frequently exposed to arthropod-associated viruses in the wild and can carry many vertebrate viruses under natural conditions. This study provides important insights into the virome of pangolins, underscoring the importance of monitoring potential pathogens in healthy pangolins to prevent outbreaks of infectious diseases in domesticated animals and humans.

Identification of a novel astrovirus from intestinal tissue of a donkey foal with severe diarrhea in China

“…In total, 52.85 million reads were obtained. Using previously described methods ( Tian et al, 2022 ), low-quality bases were filtered out using the fastp program (v0.20.0) and the remaining reads were assembled de novo using SPAdes (v3.13.0). The assembled reads were then compared with the National Center for Biotechnology Information (NCBI) non-redundant (nr) protein database using Diamond BLASTx (v0.9.7) to identify virus-associated contigs.…”