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Replication and shedding of MERS-CoV in Jamaican fruit bats (Artibeus jamaicensis)

Authors: Munster, Vincent J.; Adney, Danielle R.; van Doremalen, Neeltje; Brown, Vienna R.; Miazgowicz, Kerri L.; Milne-Price, Shauna; Bushmaker, Trenton; +6 Authors

Replication and shedding of MERS-CoV in Jamaican fruit bats (Artibeus jamaicensis)

Abstract

Abstract The emergence of Middle East respiratory syndrome coronavirus (MERS-CoV) highlights the zoonotic potential of Betacoronaviruses . Investigations into the origin of MERS-CoV have focused on two potential reservoirs: bats and camels. Here, we investigated the role of bats as a potential reservoir for MERS-CoV. In vitro , the MERS-CoV spike glycoprotein interacted with Jamaican fruit bat ( Artibeus jamaicensis ) dipeptidyl peptidase 4 (DPP4) receptor and MERS-CoV replicated efficiently in Jamaican fruit bat cells, suggesting there is no restriction at the receptor or cellular level for MERS-CoV. To shed light on the intrinsic host-virus relationship, we inoculated 10 Jamaican fruit bats with MERS-CoV. Although all bats showed evidence of infection, none of the bats showed clinical signs of disease. Virus shedding was detected in the respiratory and intestinal tract for up to 9 days. MERS-CoV replicated transiently in the respiratory and, to a lesser extent, the intestinal tracts and internal organs; with limited histopathological changes observed only in the lungs. Analysis of the innate gene expression in the lungs showed a moderate, transient induction of expression. Our results indicate that MERS-CoV maintains the ability to replicate in bats without clinical signs of disease, supporting the general hypothesis of bats as ancestral reservoirs for MERS-CoV.

Keywords

Coronaviridae, Dipeptidyl Peptidase 4, bats, bat, Antibodies, Viral, Virus Replication, Article, virus-host, pathogen-host, Chiroptera, Cricetinae, Chlorocebus aethiops, Animals, Animalia, biotic relations, Viridae, Chordata, Lung, Vero Cells, biotic associations, corona viruses, covid, pathogens, Biodiversity, Viral Load, biotic interaction, Immunity, Innate, Virus Shedding, covid-19, Mammalia, Middle East Respiratory Syndrome Coronavirus, Receptors, Virus, Coronavirus Infections, CETAF-taskforce

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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