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  1. Article ; Online: Bivalent (Omicron BA.5/ancestral) recombinant spike protein vaccine: a promising booster.

    Zhang, Ruiqi / Hung, Ivan Fan-Ngai

    The Lancet. Infectious diseases

    2024  

    Language English
    Publishing date 2024-03-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2061641-7
    ISSN 1474-4457 ; 1473-3099
    ISSN (online) 1474-4457
    ISSN 1473-3099
    DOI 10.1016/S1473-3099(24)00156-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: CS-2034 mRNA vaccine: a new option for COVID-19 infection?

    Zhang, Ruiqi / Hung, Ivan Fan-Ngai

    The Lancet. Infectious diseases

    2023  Volume 23, Issue 9, Page(s) 986–987

    MeSH term(s) Humans ; COVID-19/prevention & control ; Vaccines, Synthetic ; mRNA Vaccines
    Chemical Substances Vaccines, Synthetic
    Language English
    Publishing date 2023-05-19
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 2061641-7
    ISSN 1474-4457 ; 1473-3099
    ISSN (online) 1474-4457
    ISSN 1473-3099
    DOI 10.1016/S1473-3099(23)00277-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Editorial: optimising hepatitis B vaccine response in inflammatory bowel disease-time to get some skin in the game. Authors' reply.

    Ko, Kwan-Lung / Hung, Ivan Fan-Ngai / Leung, Wai K

    Alimentary pharmacology & therapeutics

    2022  Volume 56, Issue 2, Page(s) 355–356

    MeSH term(s) Chronic Disease ; Hepatitis B Vaccines ; Humans ; Inflammatory Bowel Diseases
    Chemical Substances Hepatitis B Vaccines
    Language English
    Publishing date 2022-08-03
    Publishing country England
    Document type Editorial ; Comment
    ZDB-ID 639012-2
    ISSN 1365-2036 ; 0269-2813 ; 0953-0673
    ISSN (online) 1365-2036
    ISSN 0269-2813 ; 0953-0673
    DOI 10.1111/apt.17069
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Approaches in broadening the neutralizing antibody response of the influenza vaccine.

    Zhang, Ruiqi / Hung, Ivan Fan-Ngai

    Expert review of vaccines

    2021  Volume 20, Issue 12, Page(s) 1539–1547

    Abstract: Introduction: Influenza vaccine is the mainstay for influenza prevention and elicits immune response and antigen-specific neutralizing antibodies against influenza virus. However, antigenic drift and shift can confer influenza virus to escape from the ... ...

    Abstract Introduction: Influenza vaccine is the mainstay for influenza prevention and elicits immune response and antigen-specific neutralizing antibodies against influenza virus. However, antigenic drift and shift can confer influenza virus to escape from the immune response induced by vaccine, and then reduce the vaccine effectiveness.
    Areas covered: To improve effect and neutralizing antibody response of vaccine for heterologous influenza virus, a literature review of preclinical and clinical studies published before August 2021 and searched in PubMed, which evaluated vaccine effectiveness improved by adjuvants and administration route.
    Expert opinion: The review showed that adjuvant, including imiquimod, GLA, MF59, and AS03, can improve the effectiveness of influenza vaccines by regulating immune system. Subjects receiving influenza vaccine combined with these adjuvants showed enhanced antibody response against homologous and heterologous virus strains compared to those vaccinated without adjuvant. This review also discussed the role of intradermal vaccination. In contrast to intramuscular vaccination, intradermal vaccination elicited a robust and prolonged antibody response against vaccine strains and drifted virus than intramuscular vaccination.
    MeSH term(s) Adjuvants, Immunologic ; Antibodies, Neutralizing ; Antibodies, Viral ; Antibody Formation ; Humans ; Influenza Vaccines ; Influenza, Human/prevention & control ; Vaccination
    Chemical Substances Adjuvants, Immunologic ; Antibodies, Neutralizing ; Antibodies, Viral ; Influenza Vaccines
    Language English
    Publishing date 2021-10-04
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2181284-6
    ISSN 1744-8395 ; 1476-0584
    ISSN (online) 1744-8395
    ISSN 1476-0584
    DOI 10.1080/14760584.2021.1984887
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: The Four Ws of the Fourth Dose COVID-19 Vaccines: Why, Who, When and What.

    Khong, Ka-Wa / Zhang, Ruiqi / Hung, Ivan Fan-Ngai

    Vaccines

    2022  Volume 10, Issue 11

    Abstract: With the emergence of SARS-CoV-2 variants, vaccine breakthrough is a major public health concern. With evidence of reduced neutralizing antibody activity against Omicron variants and fading antibody level after the third-dose booster vaccine, there are ... ...

    Abstract With the emergence of SARS-CoV-2 variants, vaccine breakthrough is a major public health concern. With evidence of reduced neutralizing antibody activity against Omicron variants and fading antibody level after the third-dose booster vaccine, there are suggestions of a fourth-dose booster vaccine. In this review, the benefits of a fourth-dose booster is evaluated from four perspectives, including the effectiveness of the booster dose against virus variants (Why), susceptible groups of individuals who may benefit from additional booster dose (Who), selection of vaccine platforms to better enhance immunity (What) and appropriate intervals between the third and fourth booster dose (When). In summary, a fourth dose can temporarily boost the immune response against SARS-CoV-2 variants and can be considered for specific groups of individuals. A heterologous vaccine strategy using mRNA vaccine in individuals primed with inactivated vaccine may boost immunity against variants. The timing of the fourth dose should be individualized but an interval of 4 months after the third-dose booster is appropriate. A universal fourth booster dose is not necessary.
    Language English
    Publishing date 2022-11-14
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2703319-3
    ISSN 2076-393X
    ISSN 2076-393X
    DOI 10.3390/vaccines10111924
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Interaction and antiviral treatment of coinfection between SARS-CoV-2 and influenza in vitro.

    Liu, Danlei / Leung, Ka-Yi / Lam, Hoi-Yan / Zhang, Ruiqi / Fan, Yujing / Xie, Xiaochun / Chan, Kwok-Hung / Hung, Ivan Fan-Ngai

    Virus research

    2024  Volume 345, Page(s) 199371

    Abstract: Background: The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has lasted for three years. Coinfection with seasonal influenza may occur resulting in more severe diseases. The interaction between these two viruses for ... ...

    Abstract Background: The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has lasted for three years. Coinfection with seasonal influenza may occur resulting in more severe diseases. The interaction between these two viruses for infection and the effect of antiviral treatment remains unclear.
    Methods: A SARS-CoV-2 and influenza H1N1 coinfection model on Calu-3 cell line was established, upon which the simultaneous and sequential coinfection was evaluated by comparing the viral load. The efficacy of molnupiravir and baloxavir against individual virus and coinfection were also studied.
    Results: The replication of SARS-CoV-2 was significantly interfered when the influenza virus was infected simultaneously or in advance (p < 0.05). On the contrary, the replication of the influenza virus was not affected by the SARS-CoV-2. Molnupiravir monotherapy had significant inhibitory effect on SARS-CoV-2 when the concentration reached to 6.25 μM but did not show any significant anti-influenza activity. Baloxavir was effective against influenza within the dosage range and showed significant effect of anti-SARS-CoV-2 at 16 μM. In the treatment of coinfection, molnupiravir had significant effect for SARS-CoV-2 from 6.25 μM to 100 μM and inhibited H1N1 at 100 μM (p < 0.05). The tested dosage range of baloxavir can inhibit H1N1 significantly (p < 0.05), while at the highest concentration of baloxavir did not further inhibit SARS-CoV-2, and the replication of SARS-CoV-2 significantly increased in lower concentrations. Combination treatment can effectively inhibit influenza H1N1 and SARS-CoV-2 replication during coinfection. Compared with molnupiravir or baloxavir monotherapy, combination therapy was more effective in less dosage to inhibit the replication of both viruses.
    Conclusions: In coinfection, the replication of SARS-CoV-2 would be interfered by influenza H1N1. Compared with molnupiravir or baloxavir monotherapy, treatment with a combination of molnupiravir and baloxavir should be considered for early treatment in patients with SARS-CoV-2 and influenza coinfection.
    Language English
    Publishing date 2024-04-18
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 605780-9
    ISSN 1872-7492 ; 0168-1702
    ISSN (online) 1872-7492
    ISSN 0168-1702
    DOI 10.1016/j.virusres.2024.199371
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Safety and Efficacy of COVID-19 Vaccines: A Systematic Review and Meta-Analysis of Different Vaccines at Phase 3.

    Fan, Yu-Jing / Chan, Kwok-Hung / Hung, Ivan Fan-Ngai

    Vaccines

    2021  Volume 9, Issue 9

    Abstract: This systematic review and meta-analysis was conducted to compare the safety and efficacy of 2019 novel coronavirus disease (COVID-19) vaccines according to vaccine platform and severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) infection ... ...

    Abstract This systematic review and meta-analysis was conducted to compare the safety and efficacy of 2019 novel coronavirus disease (COVID-19) vaccines according to vaccine platform and severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) infection severity. Articles published between 24 January 2020 and 30 May 2021 were retrieved via a PubMed and EMBASE search. A total of 12 reports on phase-3 clinical trials and observational studies of COVID-19 vaccines were included in the review. In terms of vaccine safety, mRNA vaccines showed more relevance to serious adverse events than viral vector and inactivated vaccines, but no solid evidence indicated that COVID-19 vaccines directly caused serious adverse events. Serious metabolic, musculoskeletal, immune-system, and renal disorders were more common among inactivated vaccine recipients, and serious gastrointestinal complications and infections were more common among viral vector and inactivated vaccine recipients. The occurrence of serious vessel disorders was more frequent in mRNA vaccines. In terms of efficacy, two mRNA vaccine doses conferred a lesser risk of SARS-COV-2 infection (odds ratio: 0.05; 95% confidence interval: 0.02-0.13) than did vaccination with viral vector and inactivated vaccines. All vaccines protected more against symptomatic than asymptomatic cases (risk ratio, 0.11 vs. 0.34), but reduced the risk of severe SARS-COV-2 infection. The COVID-19 vaccines assessed in this study are sufficiently safe and effective. The results indicate that two mRNA vaccine doses prevent SARS-COV-2 infection most effectively, but further research is needed due to the high degree of heterogeneity among studies in this sample. Interventions should be implemented continuously to reduce the risks of infection after one vaccine dose and asymptomatic infection.
    Language English
    Publishing date 2021-09-04
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2703319-3
    ISSN 2076-393X
    ISSN 2076-393X
    DOI 10.3390/vaccines9090989
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Safety and Efficacy of COVID-19 Vaccines

    Yu-Jing Fan / Kwok-Hung Chan / Ivan Fan-Ngai Hung

    Vaccines, Vol 9, Iss 989, p

    A Systematic Review and Meta-Analysis of Different Vaccines at Phase 3

    2021  Volume 989

    Abstract: This systematic review and meta-analysis was conducted to compare the safety and efficacy of 2019 novel coronavirus disease (COVID-19) vaccines according to vaccine platform and severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) infection ... ...

    Abstract This systematic review and meta-analysis was conducted to compare the safety and efficacy of 2019 novel coronavirus disease (COVID-19) vaccines according to vaccine platform and severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) infection severity. Articles published between 24 January 2020 and 30 May 2021 were retrieved via a PubMed and EMBASE search. A total of 12 reports on phase-3 clinical trials and observational studies of COVID-19 vaccines were included in the review. In terms of vaccine safety, mRNA vaccines showed more relevance to serious adverse events than viral vector and inactivated vaccines, but no solid evidence indicated that COVID-19 vaccines directly caused serious adverse events. Serious metabolic, musculoskeletal, immune-system, and renal disorders were more common among inactivated vaccine recipients, and serious gastrointestinal complications and infections were more common among viral vector and inactivated vaccine recipients. The occurrence of serious vessel disorders was more frequent in mRNA vaccines. In terms of efficacy, two mRNA vaccine doses conferred a lesser risk of SARS-COV-2 infection (odds ratio: 0.05; 95% confidence interval: 0.02–0.13) than did vaccination with viral vector and inactivated vaccines. All vaccines protected more against symptomatic than asymptomatic cases (risk ratio, 0.11 vs. 0.34), but reduced the risk of severe SARS-COV-2 infection. The COVID-19 vaccines assessed in this study are sufficiently safe and effective. The results indicate that two mRNA vaccine doses prevent SARS-COV-2 infection most effectively, but further research is needed due to the high degree of heterogeneity among studies in this sample. Interventions should be implemented continuously to reduce the risks of infection after one vaccine dose and asymptomatic infection.
    Keywords mRNA vaccines ; inactivated vaccines ; non-replicating vaccines ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2021-09-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Early triple antiviral therapy for COVID-19 - Authors' reply.

    Hung, Ivan Fan-Ngai / Yuen, Kwok-Yung

    Lancet (London, England)

    2020  Volume 396, Issue 10261, Page(s) 1488

    MeSH term(s) Antiviral Agents/therapeutic use ; Betacoronavirus ; COVID-19 ; Coronavirus Infections/drug therapy ; Humans ; Interferon beta-1b/therapeutic use ; Lopinavir ; Pandemics ; Pneumonia, Viral ; Ribavirin/therapeutic use ; Ritonavir/therapeutic use ; SARS-CoV-2
    Chemical Substances Antiviral Agents ; Interferon beta-1b (145155-23-3) ; Lopinavir (2494G1JF75) ; Ribavirin (49717AWG6K) ; Ritonavir (O3J8G9O825)
    Keywords covid19
    Language English
    Publishing date 2020-11-05
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 3306-6
    ISSN 1474-547X ; 0023-7507 ; 0140-6736
    ISSN (online) 1474-547X
    ISSN 0023-7507 ; 0140-6736
    DOI 10.1016/S0140-6736(20)32268-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Post-COVID-19 Pandemic Rebound of Macrolide-Resistant

    Xing, Fan-Fan / Chiu, Kelvin Hei-Yeung / Deng, Chao-Wen / Ye, Hai-Yan / Sun, Lin-Lin / Su, Yong-Xian / Cai, Hui-Jun / Lo, Simon Kam-Fai / Rong, Lei / Chen, Jian-Liang / Cheng, Vincent Chi-Chung / Lung, David Christopher / Sridhar, Siddharth / Chan, Jasper Fuk-Woo / Hung, Ivan Fan-Ngai / Yuen, Kwok-Yung

    Antibiotics (Basel, Switzerland)

    2024  Volume 13, Issue 3

    Abstract: The rebound characteristics of respiratory infections after lifting pandemic control measures were uncertain. From January to November 2023, patients presenting at a teaching hospital were tested for common respiratory viruses ... ...

    Abstract The rebound characteristics of respiratory infections after lifting pandemic control measures were uncertain. From January to November 2023, patients presenting at a teaching hospital were tested for common respiratory viruses and
    Language English
    Publishing date 2024-03-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2681345-2
    ISSN 2079-6382
    ISSN 2079-6382
    DOI 10.3390/antibiotics13030262
    Database MEDical Literature Analysis and Retrieval System OnLINE

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