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COVID-19 vaccine (ZF2001 / Zifivax / ZF 2001)

✓ Approved

Anhui Zhifei Longcom Biopharma · 重组蛋白 · 重组蛋白

什么是 COVID-19 vaccine？

COVID-19 vaccine 是一种重组蛋白，由Anhui Zhifei Longcom Biopharma研发。该药已获批，用于治疗相关适应症，给药途径：Injectable (Others)、Intramuscular (IM) Injection。

药物档案

商品名ZF2001, Zifivax, ZF 2001
公司Anhui Zhifei Longcom Biopharma
药物类别重组蛋白, 疫苗
给药途径Injectable (Others), Intramuscular (IM) Injection
状态Approved
来源： ClinicalTrials.gov, Anhui Zhifei Longcom Biopharma

治疗适应症

COVID-19 vaccine 针对 1 个适应症，涉及 1 个治疗领域。

治疗领域疾病/病症分期
Infections and infestationsCOVID-19✓ Approved

相关研究文献

PubMedVaccines2026-07-27

Six Years of COVID-19: Lessons from Epidemiology, Vaccination Campaigns, Clinical Risk Stratification, and Thromboembolic Surveillance.

Siniscalchi Carmine C, Imbalzano Egidio E, Basaglia Manuela M, Cerundolo Nicoletta N et al.

Six years after the emergence of SARS-CoV-2, COVID-19 remains a dynamic public health challenge shaped by viral evolution, heterogeneous population immunity, changing vaccine strategies, and the long-term consequences of acute infection. Although the transition from pandemic emergency to endemic circulation has reduced the global burden of severe disease, COVID-19 continues to affect vulnerable populations, particularly older adults, frail patients, immunocompromised individuals, and subjects with multiple comorbidities. Vaccination has substantially modified the clinical course of infection, reducing hospitalization, intensive care admission, and mortality, while also reshaping surveillance priorities toward variant monitoring, vaccine effectiveness, waning immunity, breakthrough infections, and long COVID. At the same time, the pandemic has highlighted the need for integrated clinical risk stratification, including age, sex, frailty, inflammatory biomarkers, respiratory support requirements, and thromboembolic risk. Venous and arterial thrombotic complications have represented a key feature of severe COVID-19 and remain relevant for both acute management and post-discharge follow-up. This narrative review summarizes the main lessons learned from six years of COVID-19, focusing on epidemiology, vaccination campaigns, clinical risk assessment, thromboembolic complications, and surveillance strategies. Particular attention is given to the need for multidisciplinary and data-driven approaches capable of integrating virological, epidemiological, clinical, geriatric, and vascular medicine perspectives. Future COVID-19 surveillance should move beyond case counting and incorporate vaccine impact, population vulnerability, thrombotic and bleeding complications, long-term outcomes, and preparedness for emerging variants.

PMID 42506648
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PubMedVaccines2026-07-27

Parental Vaccine Hesitancy in the Post-COVID-19 Era: Results from a Cross-Sectional Survey in the United States, 2025.

Duza Syeda Sharmin SS, Blackburn Christine Crudo CC, Rico Mayra M, Boyce Matthew R MR

Background/Objectives: Vaccine hesitancy has long been recognized to pose a significant barrier to achieving optimal immunization coverage and as a leading public health threat. However, much of the existing research on parental hesitancy toward routine childhood vaccines was conducted prior to the COVID-19 pandemic. Acknowledging the impact that this public health emergency had on attitudes toward vaccination, there is a need to conduct additional research into contemporary predictors of parental vaccine hesitancy. Methods: We conducted a survey in August 2025 to characterize vaccine hesitancy attitudes in parents in the United States. A series of 10 statements about vaccines was presented to study participants, who were asked to indicate their agreement with the statements using 5-point Likert scales. A vaccine hesitancy index measure was then calculated by averaging the scores, where higher scores corresponded to higher levels of vaccine hesitancy. A hierarchical regression analysis was then conducted to identify participant characteristics that were associated with vaccine hesitancy. Results: A total of 1016 individuals were included in the analysis. Simple linear regression suggested that education, annual household income, and politics were associated with vaccine hesitancy. The fully adjusted multiple linear regression model that accounted for participant demographic, socioeconomic, geographic, and political characteristics suggested significant associations between race, education, and partisanship. Conclusions: Significant associations exist between parental vaccine hesitancy and race, education, and partisanship. These results contribute to our understanding of vaccine hesitancy in a post-COVID-19 world and suggest that social, educational, and political factors meaningfully influence parental vaccine hesitancy in the United States.

PMID 42506638
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PubMedVaccines2026-07-27

Shifting Attitudes from Willingness to Uptake in COVID-19 and Influenza Vaccination-Associated Factors and Reported Reasons.

Moura Sara S, Rodrigues António Teixeira AT, Romano Sónia S, Rodrigues Nuno N et al.

Vaccine hesitancy is a complex and growing phenomenon worldwide, posing a serious threat to public health achievement in disease control and prevention. This study aimed to assess willingness to uptake and factors linked to shifts between different categories of willingness and uptake regarding the COVID-19 and influenza vaccines. Prospective cohort study with a representative sample of 1400 individuals aged ≥60 years residing in mainland Portugal, randomly selected. Two telephone surveys were conducted: one at the start of the 2023/2024 vaccination campaign, assessing patients' characteristics and willingness for vaccination (using an 11-point Likert scale), and another at the end, assessing vaccination status and reasons for uptake/non-uptake. Shifts were observed among both acceptance and refusal groups-12.93% of the individuals within these categories shifted to an opposite decision. Hesitancy presents divergent attitudes: for the COVID-19 vaccine, 56.50% declined vaccination, while for the influenza vaccine, non-uptake was only 30.60%. Age, presence of chronic disease, level of education, household dimension, and previous uptake of booster doses are significantly associated with shifting attitudes, playing different roles for each category of willingness and uptake outcome. For the acceptance category, non-uptake relates to confidence factors. For hesitancy, non-uptake is mainly due to complacency. For refusal, the decision is influenced by all domains. Vaccine hesitancy remains an important public health concern in the Portuguese population and appears to differ between COVID-19 and influenza vaccination. Attitudes toward COVID-19 and influenza vaccines can vary in all directions over a short period. Acceptance does not guarantee uptake, and refusal can shift towards uptake. These findings highlight the importance of reinforcing public health strategies and interventions for uptake across a population, taking into consideration the specificities of each willingness group.

PMID 42506592
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PubMedExpert review of vaccines2026-07-27

Adapted XBB.1.5 vaccine effectiveness against severe COVID-19 outcomes among immunocompromised persons in 2023-24 in six European countries: a VEBIS-EHR network study.

Blake Alexandre A, Humphreys James J, Olson Kate K, Braeye Toon T et al.

We estimated the XBB.1.5 vaccine effectiveness (VE) against COVID-19 hospitalization and death in Belgium, Denmark, Italy, Portugal, Spain (Navarre), and Sweden following the 2023-24 fall vaccination campaign among immunocompromised persons (ICPs). We conducted a multi-country retrospective cohort study using electronic health records. Study sites identified ICPs aged ≥18 years through a common set of immunocompromising conditions and follow-up started the first day of the 2023 vaccination campaign until 12 months later. VE was calculated by time since vaccination (14-59, 60-119, 120-179, 180-365 days after vaccination) for ICPs by pooling study site level confounder adjusted hazard ratios (aHR) of vaccination, estimated with Cox proportional hazards regression models, using a random effect meta-analysis with VE = 100 × (1-pooled aHR). The XBB.1.5 VE was 52% (95% confidence interval (CI): 41 to 60) and 75% (95%CI: 60 to 84) against hospitalization and death, respectively, 14-59 days after vaccination, and VE decreased with time since vaccination with no remaining protection at 180-365 days after vaccination. Adapted XBB.1.5 vaccine provided moderate protection within 120 days after vaccination against severe COVID-19 outcomes among ICPs aged ≥18 years during a period with BA.2.86/JN.1 replacing the XBB.1.5 variant.

PMID 42504085
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PubMedVaccines2026-07-27

From Vaccine Skepticism to Institutional Distrust: The Post-Pandemic Shift.

Maria Francesco De F, Branda Francesco F, Ceccarelli Giancarlo G, Scarpa Fabio F et al.

Background: Vaccine hesitancy has traditionally been understood as a multifactorial phenomenon shaped by individual beliefs, risk perceptions, and access barriers. However, the COVID-19 pandemic has fundamentally transformed the relationship between citizens, science, and public institutions, raising the question of whether vaccine hesitancy has evolved into a broader form of institutional distrust. Objective: This narrative review synthesizes evidence on vaccine confidence, trust dynamics, misinformation, and post-pandemic attitudes to propose a new conceptual framework, i.e., institutional hesitancy, that reframes vaccine acceptance within the wider context of institutional credibility, transparency, and legitimacy. Methods: We conducted a narrative synthesis of peer-reviewed literature, surveillance reports, and cross-national surveys published between 2015 and 2026, focusing on trust in science, governments, public health agencies, healthcare systems, and regulatory authorities as determinants of vaccination behavior. Results: The evidence consistently demonstrates that institutional trust is among the strongest predictors of vaccine acceptance, often surpassing traditional demographic and knowledge-based variables. The pandemic exposed and amplified pre-existing fractures in the relationship between citizens and institutions, creating a legacy of institutional skepticism that extends beyond COVID-19 vaccines to routine immunization programs, seasonal vaccination campaigns, and future pandemic preparedness. Traditional information-based approaches, which assume that knowledge deficits drive hesitancy, have proven insufficient when trust is compromised. Instead, rebuilding vaccine confidence requires sustained investment in institutional transparency, community engagement, and accountable governance. Conclusions: The post-pandemic era calls for a fundamental reconceptualization of vaccine hesitancy. We propose the institutional hesitancy framework as a complementary lens that shifts the analytical focus from individual knowledge deficits to relational dynamics between citizens and institutions. Addressing this challenge requires moving beyond communication campaigns toward long-term strategies that restore institutional trust and strengthen the resilience of public health systems.

PMID 42506659
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PubMedVaccines2026-07-27

Rationally Modified SARS-CoV-2 Spike Protein Impairs ACE2 Binding While Preserving Immunogenicity in Mice.

Tamagnini Elia E, Simonelli Luca L, Palus Martin M, Jost Tanja Rezzonico TR et al.

While vaccines are designed to elicit targeted immune responses, in some cases, the immunogenic molecules employed can inherently interact with broader host cellular pathways as a secondary consequence. This phenomenon can be exemplified by COVID-19 vaccines. COVID-19 vaccines, including mRNA platforms, use the SARS-CoV-2 spike protein as an immunogen to induce the production of neutralizing antibodies. The spike protein binds the ACE2 (angiotensin-converting enzyme 2) receptor on human cells, mediating viral entry and infection. ACE2 is widely expressed across multiple tissues and is a key component of the renin-angiotensin-aldosterone system (RAAS) that acts as a homeostatic regulator of systemic and local blood flow, blood pressure, cardiac function, fluid balance and immunity. Some studies have proposed the interaction between the spike protein and ACE2 as a possible contributing factor to rare adverse effects observed following COVID-19 vaccination, including myocarditis, pericarditis, thrombosis, and reported alterations in blood pressure, though these mechanisms remain to be fully elucidated. As a proof-of-concept approach in vaccine antigen development, we engineered SARS-CoV-2 spike mutants with impaired binding to the host receptor ACE2. By rational design, we produced and validated in vitro and in vivo spike point mutants that do not effectively bind ACE2. The engineered spike mutants do not effectively bind the human entry receptor ACE2 while retaining the immunogenic properties equal to or better than the wild type spike and thus generate a protective response in animals when used as a vaccination agent. By establishing a straightforward molecular strategy for rational vaccine design, this work demonstrates the feasibility of limiting specific antigen-host receptor interactions while maintaining immunogenicity. This approach may be applicable to future vaccination strategies where antigen interaction with host cells could potentially interfere with physiological pathways.

PMID 42506605
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