Search Results - "Ip, Jonathan"
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Coronavirus Disease 2019 (COVID-19) Re-infection by a Phylogenetically Distinct Severe Acute Respiratory Syndrome Coronavirus 2 Strain Confirmed by Whole Genome Sequencing
Published in Clinical infectious diseases (02-11-2021)“…Abstract Background Waning immunity occurs in patients who have recovered from Coronavirus Disease 2019 (COVID-19). However, it remains unclear whether true…”
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Neutralization of Severe Acute Respiratory Syndrome Coronavirus 2 Omicron Variant by Sera From BNT162b2 or CoronaVac Vaccine Recipients
Published in Clinical infectious diseases (24-08-2022)“…Abstract Background The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) omicron variant, designated as a variant of concern by the World Health…”
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SARS-CoV-2 Omicron variant shows less efficient replication and fusion activity when compared with Delta variant in TMPRSS2-expressed cells
Published in Emerging microbes & infections (01-12-2022)“…The novel SARS-CoV-2 Omicron variant (B.1.1.529), first found in early November 2021, has sparked considerable global concern and it has >50 mutations, many of…”
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Investigation of air dispersal during a rhinovirus outbreak in a pediatric intensive care unit
Published in American journal of infection control (01-04-2024)“…While airborne transmission of rhinovirus is recognized in indoor settings, its role in hospital transmission remains unclear. We investigated an outbreak of…”
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Contribution of low population immunity to the severe Omicron BA.2 outbreak in Hong Kong
Published in Nature communications (24-06-2022)“…Monitoring population protective immunity against SARS-CoV-2 variants is critical for risk assessment. We hypothesize that Hong Kong’s explosive Omicron BA.2…”
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Development and evaluation of a conventional RT‐PCR for differentiating emerging influenza B/Victoria lineage viruses with hemagglutinin amino acid deletion from B/Yamagata lineage viruses
Published in Journal of medical virology (01-03-2020)“…Background Recent influenza B/Victoria lineage viruses contain amino acid deletions at positions 162 to 164 of the haemagglutinin (HA) protein. These amino…”
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Assessment of population susceptibility to upcoming seasonal influenza epidemic strain using interepidemic emerging influenza virus strains
Published in Epidemiology and infection (26-09-2019)“…Seasonal influenza virus epidemics have a major impact on healthcare systems. Data on population susceptibility to emerging influenza virus strains during the…”
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Cross-linking peptide and repurposed drugs inhibit both entry pathways of SARS-CoV-2
Published in Nature communications (09-03-2021)“…Up to date, effective antivirals have not been widely available for treating COVID-19. In this study, we identify a dual-functional cross-linking peptide 8P9R…”
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Emerging SARS-CoV-2 variants expand species tropism to murines
Published in EBioMedicine (01-11-2021)“…Wildtype mice are not susceptible to SARS-CoV-2 infection. Emerging SARS-CoV-2 variants, including B.1.1.7, B.1.351, P.1, and P.3, contain mutations in spike…”
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Humoral and cellular immunity against different SARS-CoV-2 variants in patients with chronic kidney disease
Published in Scientific reports (15-11-2023)“…Chronic kidney disease (CKD) patients are at higher risk of severe COVID-19. Humoral and cellular immunity from prior infection or vaccination are important…”
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Development and Evaluation of an In-House Real-Time RT-PCR Targeting nsp10 Gene for SARS-CoV-2 Detection
Published in International journal of molecular sciences (01-03-2024)“…The emergence of SARS-CoV-2 mutations poses significant challenges to diagnostic tests, as these mutations can reduce the sensitivity of commonly used RT-PCR…”
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Loss of orf3b in the circulating SARS-CoV-2 strains
Published in Emerging microbes & infections (01-01-2020)“…The newly emerged betacoronavirus, SARS-CoV-2, causes the COVID-19 pandemic since December 2019 with more than 35 million laboratory confirmed human infections…”
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The impact of spike N501Y mutation on neutralizing activity and RBD binding of SARS-CoV-2 convalescent serum
Published in EBioMedicine (01-09-2021)“…Several SARS-CoV-2 lineages with spike receptor binding domain (RBD) N501Y mutation have spread globally. We evaluated the impact of N501Y on neutralizing…”
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Normal DNA methylation dynamics in DICER1-deficient mouse embryonic stem cells
Published in PLoS genetics (01-09-2012)“…Reduced DNA methylation has been reported in DICER1-deficient mouse ES cells. Reductions seen at pericentric satellite repeats have suggested that siRNAs are…”
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Risk Factors for Slow Viral Decline in COVID-19 Patients during the 2022 Omicron Wave
Published in Viruses (01-08-2022)“…Formulating termination of isolation (de-isolation) policies requires up-to-date knowledge about viral shedding dynamics. However, current de-isolation…”
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Identification of novel small-molecule inhibitors of SARS-CoV-2 by chemical genetics
Published in Acta pharmaceutica Sinica. B (01-09-2024)“…There are only eight approved small molecule antiviral drugs for treating COVID-19. Among them, four are nucleotide analogues (remdesivir, JT001, molnupiravir,…”
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The first case of monkeypox in Hong Kong presenting as infectious mononucleosis-like syndrome
Published in Emerging microbes & infections (31-12-2023)Get full text
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Rapid Diagnosis of Mycobacterium marinum Infection by Next-Generation Sequencing: A Case Report
Published in Frontiers in medicine (04-02-2022)“…We present the first report of histology- and culture-proven infection diagnosed by next-generation sequencing (NGS). It took <2 days to make a microbiological…”
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