Title Interactions between Severe Acute Respiratory Syndrome Coronavirus 2 Replication and Major Respiratory Viruses in Human nasal Epithelium.
Author Andres, Pizzorno; Blandine, Padey; Victoria, Duliere; William, Mouton; Justine, Oliva; Laurent, Emilie; Cedrine, Milesi; Bruno, Lina; Aurelien, Traversier; Thomas, Julien; Sophie, Trouillet Assant; Manuel, Rosa Calatrava; Olivier, Terrier
Journal J Infect Dis Publication Year/Month 2022-Aug
PMID 36031537 PMCID PMC9452145
Affiliation + expend 1.CIRI, Centre International de Recherche en Infectiologie, (Team VirPath), Univ Lyon, Inserm, U1111, Universite Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France.

The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), along with extensive non-pharmacological interventions, have profoundly altered the epidemiology of major respiratory viruses. Some studies have described virus-virus interactions, particularly manifested by viral interference mechanisms at different scales. Still, our knowledge of the mutual interactions between SARS-CoV-2 and other respiratory viruses remains incomplete. Here, we studied the interactions between SARS-CoV-2 and several respiratory viruses (influenza, RSV, hMPV, and hRV) in a reconstituted human epithelial airway model, exploring different scenarios affecting the sequence and timing of co-infections. We show that the virus type and the sequence of infections are key parameters of virus-virus interactions, having the impact of primary infections on the regulation of the immune response a determinant role in the outcome of secondary infections.

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