Recent evidence findings

Evidence-grounded Research Brief · Past 3 months 33

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10 source articles 12 hosts 2 countries
Publication date Category / type Key finding PMID
2026-10-05 Functional Mechanism Molecular Adaptation nsp12 mutations I171V, A185S, R249K, and N611S increased replication in a SARS-CoV-2 replicon in human-cell context. 42831623
2026-10-05 Genomic Evolution Phylogenetic Evolution Phylogenetic/comparative analysis of 183 bat SARS-related coronavirus nsp12 sequences identified mutation hotspots overlapping variable sites in human SARS-CoV-2 (including P323L), indicating shared functional constraints across hosts. 42831623
2026-10-05 Experimental Infection Host Range Experiment Specific bat SARS-related coronavirus nsp12 mutations enhanced viral replication in both bat and human cells in controlled assays. 42831623
2026-10-05 Functional Mechanism Molecular Adaptation Eight bat-derived nsp12 mutations increased polymerase activity at 37°C, with several also advantageous at 33°C or 40°C. 42831623
2026-10-05 Functional Mechanism Molecular Adaptation Adaptive nsp12 mutations map to RNA capping and RdRp catalytic core regions without altering remdesivir sensitivity. 42831623
2026-10 Zoonotic Surveillance Serological Evidence Sera from SARS-CoV-2 convalescent individuals robustly cross-neutralised clade 1 sarbecoviruses and showed limited cross-neutralisation across the broader sarbecovirus sub-genus. 42821519
2026-10 Functional Mechanism Receptor Usage Clade 1 sarbecoviruses, including SARS-CoV-2 and the BANAL isolates from Laos, show broad ACE2 usage, whereas clade 3 (RhGB07) and clade 5 (Rc-o319) exhibit restricted ACE2 usage. 42821519
2026-10 Experimental Infection Host Range Experiment Generalist sarbecoviruses maintained broad entry across a diverse mammalian ACE2 panel (human, non-human primate, livestock, rodent, and potential intermediate hosts), whereas specialists like RhGB07 showed more variable phenotypes. 42821519
2026-10 Zoonotic Surveillance Serological Evidence Monoclonal antibodies derived from COVID-19 vaccinees with breakthrough infections identified epitope classes mediating broader neutralisation. 42821519
2026-10 Functional Mechanism Receptor Usage SARS-CoV-2 variants, especially Omicron and its sub-lineages, display an expanding or shifting generalist pattern of ACE2 usage. 42821519
2026-09-24 Experimental Infection Pathogenicity Experiment In K18-hACE2 hamsters, MpCoV-GD caused lung pathology comparable to SARS-CoV-2, with extensive damage to the alveolar parenchyma. 42782103
2026-09-24 Experimental Infection Host Range Experiment Pangolin sarbecoviruses MpCoV-GX and MpCoV-GD replicate in human cells and organoids, though less efficiently than SARS-CoV-2. 42782103
2026-09-24 Functional Mechanism Receptor Usage Spike proteins from pangolin sarbecoviruses mediate cell–cell membrane fusion, with MpCoV-GD fusing more strongly than MpCoV-GX but weaker than SARS-CoV-2. 42782103
2026-09-08 Zoonotic Surveillance Serological Evidence Pre-2019 human sera from wildlife hunter communities in Guinea showed IgG cross-reactivity to SARS-CoV, SARS-CoV-2, and MERS-CoV spike antigens. 42797820
2026-09-08 Zoonotic Surveillance Serological Evidence A subgroup of human sera from Guinea showed strong binding to both SARS-CoV and MERS-CoV receptor binding domains. 42797820
2026-08-31 Functional Mechanism Receptor Usage The SARS-CoV-2 Delta variant spike favors multivalent engagement of ACE2 via its three RBDs. 42671377
2026-08-31 Functional Mechanism Molecular Adaptation Later Omicron variants compensate a shift to predominantly single-site ACE2 engagement by increasing the stability of the RBD–ACE2 bond. 42671377
2026-08-31 Functional Mechanism Receptor Usage Later Omicron variants of SARS-CoV-2 predominantly use single-site ACE2 interactions, compensated by stronger RBD–ACE2 bond stability. 42671377
2026-08-31 Functional Mechanism Molecular Adaptation Spike conformational plasticity evolved from flexible early strains to rigidified Delta, fluctuating in Omicron, and compact JN.1, balancing receptor accessibility, mobility, and immune escape while maintaining entry efficiency. 42671377
2026-08-21 Experimental Infection Host Range Experiment RhGB01 and BM48-31 spikes utilized only Rhinolophus blasii ACE2 in entry assays. 42627230
2026-08-21 Functional Mechanism Receptor Usage ACE2 residues 31 and 41 modulate sarbecovirus spike–ACE2 interactions. 42627230
2026-08-21 Experimental Infection Host Range Experiment Cloned African Rhinolophus ACE2 variants were tested in a receptor-entry system against a panel of sarbecoviruses to assess susceptibility. 42627230
2026-08-21 Functional Mechanism Receptor Usage Specific ACE2 residues govern SARS-CoV-2 spike–ACE2 interactions and shape infectivity differences across species. 42627230
2026-08-12 Zoonotic Surveillance Reservoir Ecology European hedgehogs were concluded to be unlikely maintenance hosts for SARS-CoV-2. 42612403
2026-07-29 Zoonotic Surveillance Viral Detection SARS-CoV-2 RNA was detected in three white-tailed deer in Massachusetts and Vermont. 42655652
2026-07-29 Zoonotic Surveillance Serological Evidence ELISA detected SARS-CoV-2–reactive sera in nine wild animals across Eastern cottontail, Eastern coyote, and raccoon, indicating prior exposure. 42655652
2026-07-29 Zoonotic Surveillance Serological Evidence Neutralizing antibodies to the SARS-CoV-2 Omicron variant were detected in a single Eastern cottontail. 42655652
2026-07-29 Transmission Evidence Cross-species Transmission Phylogeographic relatedness of Vermont sequences supports a possible human-to–white-tailed deer SARS-CoV-2 spillover. 42655652
2026-07-29 Genomic Evolution Phylogenetic Evolution Vermont white-tailed deer SARS-CoV-2 genomes are closely related to contemporaneous human sequences from the same region, indicating recent human–deer lineage linkage. 42655652
2026-07-21 Functional Mechanism Molecular Adaptation Several Guangdong pangolin coronaviruses carry a lysine substitution at spike residue 519 that confers marked immune evasion by modulating spike conformational state. 42267927
2026-07-21 Functional Mechanism Molecular Adaptation SARS-CoV-2 acquired a divergent immune-evasive mutation at spike residue 519. 42267927
2026-07 Experimental Infection Host Range Experiment Seasonal influenza A H1N1, H3N2, influenza B, MERS-CoV, and SARS-CoV productively replicated and infected human bronchial tissues in an ex vivo model. 42397692
2026-07 Experimental Infection Pathogenicity Experiment In an in vitro human alveolar model, HPAI H5N1, H7N9, MERS-CoV, and SARS-CoV caused more severe impairment of alveolar fluid clearance than seasonal H1N1, H3N2, and influenza B viruses. 42397692
Evidence-grounded Research Brief · Past month 13

Synthesizing linked evidence and source literature...

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3 source articles 7 hosts 0 countries
Publication date Category / type Key finding PMID
2026-10-05 Functional Mechanism Molecular Adaptation nsp12 mutations I171V, A185S, R249K, and N611S increased replication in a SARS-CoV-2 replicon in human-cell context. 42831623
2026-10-05 Genomic Evolution Phylogenetic Evolution Phylogenetic/comparative analysis of 183 bat SARS-related coronavirus nsp12 sequences identified mutation hotspots overlapping variable sites in human SARS-CoV-2 (including P323L), indicating shared functional constraints across hosts. 42831623
2026-10-05 Experimental Infection Host Range Experiment Specific bat SARS-related coronavirus nsp12 mutations enhanced viral replication in both bat and human cells in controlled assays. 42831623
2026-10-05 Functional Mechanism Molecular Adaptation Eight bat-derived nsp12 mutations increased polymerase activity at 37°C, with several also advantageous at 33°C or 40°C. 42831623
2026-10-05 Functional Mechanism Molecular Adaptation Adaptive nsp12 mutations map to RNA capping and RdRp catalytic core regions without altering remdesivir sensitivity. 42831623
2026-10 Zoonotic Surveillance Serological Evidence Sera from SARS-CoV-2 convalescent individuals robustly cross-neutralised clade 1 sarbecoviruses and showed limited cross-neutralisation across the broader sarbecovirus sub-genus. 42821519
2026-10 Functional Mechanism Receptor Usage Clade 1 sarbecoviruses, including SARS-CoV-2 and the BANAL isolates from Laos, show broad ACE2 usage, whereas clade 3 (RhGB07) and clade 5 (Rc-o319) exhibit restricted ACE2 usage. 42821519
2026-10 Experimental Infection Host Range Experiment Generalist sarbecoviruses maintained broad entry across a diverse mammalian ACE2 panel (human, non-human primate, livestock, rodent, and potential intermediate hosts), whereas specialists like RhGB07 showed more variable phenotypes. 42821519
2026-10 Zoonotic Surveillance Serological Evidence Monoclonal antibodies derived from COVID-19 vaccinees with breakthrough infections identified epitope classes mediating broader neutralisation. 42821519
2026-10 Functional Mechanism Receptor Usage SARS-CoV-2 variants, especially Omicron and its sub-lineages, display an expanding or shifting generalist pattern of ACE2 usage. 42821519
2026-09-24 Experimental Infection Pathogenicity Experiment In K18-hACE2 hamsters, MpCoV-GD caused lung pathology comparable to SARS-CoV-2, with extensive damage to the alveolar parenchyma. 42782103
2026-09-24 Experimental Infection Host Range Experiment Pangolin sarbecoviruses MpCoV-GX and MpCoV-GD replicate in human cells and organoids, though less efficiently than SARS-CoV-2. 42782103
2026-09-24 Functional Mechanism Receptor Usage Spike proteins from pangolin sarbecoviruses mediate cell–cell membrane fusion, with MpCoV-GD fusing more strongly than MpCoV-GX but weaker than SARS-CoV-2. 42782103
Evidence-grounded Research Brief · Past week 5

Synthesizing linked evidence and source literature...

Generating an evidence-grounded brief with GPT-5...
1 source articles 4 hosts 0 countries
Publication date Category / type Key finding PMID
2026-10-05 Functional Mechanism Molecular Adaptation nsp12 mutations I171V, A185S, R249K, and N611S increased replication in a SARS-CoV-2 replicon in human-cell context. 42831623
2026-10-05 Genomic Evolution Phylogenetic Evolution Phylogenetic/comparative analysis of 183 bat SARS-related coronavirus nsp12 sequences identified mutation hotspots overlapping variable sites in human SARS-CoV-2 (including P323L), indicating shared functional constraints across hosts. 42831623
2026-10-05 Experimental Infection Host Range Experiment Specific bat SARS-related coronavirus nsp12 mutations enhanced viral replication in both bat and human cells in controlled assays. 42831623
2026-10-05 Functional Mechanism Molecular Adaptation Eight bat-derived nsp12 mutations increased polymerase activity at 37°C, with several also advantageous at 33°C or 40°C. 42831623
2026-10-05 Functional Mechanism Molecular Adaptation Adaptive nsp12 mutations map to RNA capping and RdRp catalytic core regions without altering remdesivir sensitivity. 42831623

Evidence-related Animal

Evidence-related animal composition

186 animal taxa

Geographic evidence

Evidence distribution by country

45 countries

Temporal evidence

Evidence dynamics by year

135 year-type groups

Publication output

Source articles by month

282 months