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#pathogenicity — Public Fediverse posts

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  1. #Origin, #pathogenicity, and #transmissibility of a #human isolated #influenza A(#H10N3) virus from #China, Emerg Microbes Infect.: tandfonline.com/doi/full/10.10

    Human isolated H10N3 also showed respiratory #droplet #transmissibility in #ferrets. Considering continuous circulation in avian populations and repeated transmission to humans, strengthened #surveillance of H10 subtype viruses in poultry should be put into effect.

  2. #Origin, #pathogenicity, and #transmissibility of a #human isolated #influenza A(#H10N3) virus from #China, Emerg Microbes Infect.: tandfonline.com/doi/full/10.10

    Human isolated H10N3 also showed respiratory #droplet #transmissibility in #ferrets. Considering continuous circulation in avian populations and repeated transmission to humans, strengthened #surveillance of H10 subtype viruses in poultry should be put into effect.

  3. #SARS-CoV-2 #JN1 reveals attenuated #pathogenicity and #airborne #transmission

    Source: BioRxIV, AbstractJN.1 is a subvariant of SARS-CoV-2 Omicron BA.2.86 lineage that was predominant worldwide in early 2024, of which the in vivo characteristics are largely unknown. Our results demonstrated that the replication of JN.1 was more efficient than that of the parental BA.2 in Vero cells, which demonstrated low dependence on TMPRSS2. Compared to Omicron variants BA.2 and XBB…

    etidioh.wordpress.com/2024/11/

  4. #SARS-CoV-2 #JN1 reveals attenuated #pathogenicity and #airborne #transmission

    Source: BioRxIV, AbstractJN.1 is a subvariant of SARS-CoV-2 Omicron BA.2.86 lineage that was predominant worldwide in early 2024, of which the in vivo characteristics are largely unknown. Our results demonstrated that the replication of JN.1 was more efficient than that of the parental BA.2 in Vero cells, which demonstrated low dependence on TMPRSS2. Compared to Omicron variants BA.2 and XBB…

    etidioh.wordpress.com/2024/11/

  5. #Replication #Kinetics, #Pathogenicity and Virus-induced Cellular Responses of #Cattle-origin #Influenza A(#H5N1) Isolates from #Texas, United States

    Source: BioRxIV, AbstractThe host range of HPAIV H5N1 was recently expanded to include ruminants, particularly dairy cattle in the United States. Shortly after, human H5N1 infection was reported in a dairy worker in Texas following exposure to infected cattle. Herein, we rescued the cattle-origin influenza…

    etidioh.wordpress.com/2024/10/

  6. #Replication #Kinetics, #Pathogenicity and Virus-induced Cellular Responses of #Cattle-origin #Influenza A(#H5N1) Isolates from #Texas, United States

    Source: BioRxIV, AbstractThe host range of HPAIV H5N1 was recently expanded to include ruminants, particularly dairy cattle in the United States. Shortly after, human H5N1 infection was reported in a dairy worker in Texas following exposure to infected cattle. Herein, we rescued the cattle-origin influenza…

    etidioh.wordpress.com/2024/10/

  7. #Lineage-specific #pathogenicity, immune #evasion, and virological #features of #SARS-CoV-2 #BA286 / #JN1 and #EG51 / HK.3

    Source: Nature Communications, AbstractSARS-CoV-2 JN.1 with an additional L455S mutation on spike when compared with its parental variant BA.2.86 has outcompeted all earlier variants to become the dominant circulating variant. Recent studies investigated the immune resistance of SARS-CoV-2 JN.1 but additional factors are speculated to contribute to…

    etidioh.wordpress.com/2024/10/

  8. #Lineage-specific #pathogenicity, immune #evasion, and virological #features of #SARS-CoV-2 #BA286 / #JN1 and #EG51 / HK.3

    Source: Nature Communications, AbstractSARS-CoV-2 JN.1 with an additional L455S mutation on spike when compared with its parental variant BA.2.86 has outcompeted all earlier variants to become the dominant circulating variant. Recent studies investigated the immune resistance of SARS-CoV-2 JN.1 but additional factors are speculated to contribute to…

    etidioh.wordpress.com/2024/10/

  9. #Hemagglutinin and #neuraminidase of a non-pathogenic #H7N7 avian #influenza virus coevolved during acquisition of intranasal #pathogenicity in #chickens, Arch Virol.: link.springer.com/article/10.1

    This study demonstrates that viruses that are highly pathogenic when administered intranasally require additional adaptations for increased pathogenicity to be highly lethal to intranasally infected chickens.

  10. #Hemagglutinin and #neuraminidase of a non-pathogenic #H7N7 avian #influenza virus coevolved during acquisition of intranasal #pathogenicity in #chickens, Arch Virol.: link.springer.com/article/10.1

    This study demonstrates that viruses that are highly pathogenic when administered intranasally require additional adaptations for increased pathogenicity to be highly lethal to intranasally infected chickens.

  11. #Pathogenicity of HPAI #H5N1 Viruses Isolated from #Cats in Mice & #Ferrets, S #Korea, 2023, Emerg Infect Dis.: wwwnc.cdc.gov/eid/article/30/1

    H5N1 clade 2.3.4.4b viruses isolated from 2 cats harbored mutations in the PB2 gene encoding single amino acid substitutions E627K or D701N, which are associated with virus adaptation in mammals. We analyzed pathogenicity & transmission of cat-derived viruses in other mammals. Both isolates caused fatal infections in mice & ferrets.

  12. #Pathogenicity of HPAI #H5N1 Viruses Isolated from #Cats in Mice & #Ferrets, S #Korea, 2023, Emerg Infect Dis.: wwwnc.cdc.gov/eid/article/30/1

    H5N1 clade 2.3.4.4b viruses isolated from 2 cats harbored mutations in the PB2 gene encoding single amino acid substitutions E627K or D701N, which are associated with virus adaptation in mammals. We analyzed pathogenicity & transmission of cat-derived viruses in other mammals. Both isolates caused fatal infections in mice & ferrets.

  13. #Molecular basis of #pathogenicity of recently emerged #FCoV23 #coronavirus, BioRxIV: biorxiv.org/content/10.1101/20

    FCoV-23 is a recently emerged, highly pathogenic #recombinant coronavirus responsible for a widespread #outbreak of #feline infectious #peritonitis (FIP) likely linked to in-host viral evolution. Here, we report cryoEM structures of two FCoV-23 spike (S) isoforms explaining that the in-host loss of domain 0 observed in clinical samples enhances entry into cells ...

  14. #Molecular basis of #pathogenicity of recently emerged #FCoV23 #coronavirus, BioRxIV: biorxiv.org/content/10.1101/20

    FCoV-23 is a recently emerged, highly pathogenic #recombinant coronavirus responsible for a widespread #outbreak of #feline infectious #peritonitis (FIP) likely linked to in-host viral evolution. Here, we report cryoEM structures of two FCoV-23 spike (S) isoforms explaining that the in-host loss of domain 0 observed in clinical samples enhances entry into cells ...