Can Asia now learn from the experience of the West?

Tang, Julian W.; Wu, Samantha; Kwok, Kin On

doi:10.1016/j.cmi.2021.07.026

Cited by 4 publications

(4 citation statements)

References 4 publications

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“…Latest results suggests that COVID-19 vaccination is still considered as effective for protection against moderate to severe disease and deaths from the current variants of concerns such as Alpha and Delta ( Lopez Bernal et al., 2021 ). Effort to expanded the vaccination program and to maximize vaccine uptake rate is urged, especially for countries with relatively low vaccine uptake rate and substantial degree of vaccine hesitancy ( Tang et al., 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Profiling vaccine believers and skeptics in nurses: A latent profile analysis

Leung

Wei

et al. 2022

International Journal of Nursing Studies

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Background A tailored immunization program is deemed more successful in encouraging vaccination. Understanding the profiles of vaccine hesitancy constructs in nurses can help policymakers in devising such programs. Encouraging vaccination in nurses is an important step in building public confidence in the upcoming COVID-19 and influenza vaccination campaigns. Objectives Using a person-centered approach, this study aimed to reveal the profiles of the 5C psychological constructs of vaccine hesitancy (confidence, complacency, constraints, calculation, and collective responsibility) among Hong Kong nurses. Design Cross-sectional online survey. Settings With the promotion of a professional nursing organization, we invited Hong Kong nurses to complete an online survey between mid-March and late April 2020 during the COVID-19 outbreak. Participants 1,193 eligible nurses (mean age = 40.82, SD = 10.49; with 90.0% being female) were included in the analyses. Methods In the online survey, we asked the invited nurses to report their demographics, COVID-19-related work demands (including the supply of personal protective equipment, work stress, and attitudes towards workplace infection control policies), the 5C vaccine hesitancy components, seasonal influenza vaccine uptake history, and the COVID-19 vaccine uptake intention. Latent profile analysis was employed to identify distinct vaccine hesitancy antecedent subgroups. Results Results revealed five profiles, including “believers” (31%; high confidence, collective responsibility; low complacency, constraint), “skeptics” (11%; opposite to the believers), “outsiders” (14%; low calculation, collective responsibility), “contradictors” (4%; high in all 5C constructs), and “middlers” (40%; middle in all 5C constructs). Believers were less educated, reported more long-term illnesses, greater work stress, higher perceived personal protective equipment sufficiency, and stronger trust in government than skeptics. They were older and had higher perceived personal protective equipment sufficiency than middlers. Also, believers were older and had greater work stress than outsiders. From the highest to the lowest on vaccination uptake and intention were believers and contradictors, then middlers and outsiders, and finally skeptics. Conclusion Different immunization programs can be devised based on the vaccine hesitancy profiles and their predictors. Despite both profiles being low in vaccination uptake and intention, our results distinguished between outsiders and skeptics regarding their different levels of information-seeking engagement. The profile structure reveals the possibilities in devising tailored interventions based on their 5C characteristics. The current data could serve as the reference for the identification of individual profile memb...

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Section: Introductionmentioning

confidence: 99%

Profiling vaccine believers and skeptics in nurses: A latent profile analysis

Leung

Wei

et al. 2022

International Journal of Nursing Studies

Self Cite

View full text Add to dashboard Cite

show abstract

“…For instance, in Central Asia, Eastern Europe, and Africa, vaccine hesitancy for the COVID-19 vaccine is more pronounced ( 9 ). Consequently, it is critical to advocate for initiatives to expand vaccination programs and increase vaccine uptake, particularly in nations and populations with low vaccine uptake and significant vaccine hesitancy ( 10 ).…”

Section: Introductionmentioning

confidence: 99%

Targeting COVID-19 vaccine hesitancy among nurses in Shanghai: A latent profile analysis

Zhang

Dai

Wang

et al. 2022

Front. Public Health

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ObjectivesThis study aims to clarify the profiles of the psychological antecedents of vaccine hesitancy among Shanghai nurses with a person-centered approach.MethodsA population-based cross-sectional online survey was conducted on Shanghai nurses from July to August 2021 (N = 1,928). In the online survey, participants were asked to report their sociodemographic, the 5C vaccine hesitancy components, their knowledge level of COVID-19 vaccine and vaccination, and the COVID-19 vaccination uptake intention and attention to vaccine news. Latent profile analysis was used to reveal distinct profiles of vaccine hesitancy.ResultsThe results revealed four profiles, including “believers” (68.9%; high confidence and collective responsibility), “free riders” (12.7%; similar characteristics to believers, except for a low collective responsibility), “middlemen” (14.6%; middle in all 5C constructs), and “contradictors” (3.7%; high in all 5C constructs). Compared to believers, middlemen were younger, more likely to be female, childless, less educated, held lower professional titles, had fewer years of nursing service, sometimes or never complied with recommended vaccinations, had satisfactory or poor self-assessed health status, had no work experience during the COVID-19 epidemic, and possessed greater levels of knowledge. Free riders were more likely to work in community health centers and have a lower degree than believers. Contradictors were more likely to work in community health centers, had junior college degrees or lower, and had no work experience during the COVID-19 epidemic than believers. From the highest to the lowest on vaccination intention and attention to vaccine news were believers, then free riders, contradictors, and finally middlemen.ConclusionThis study could aid in the development of personalized vaccination strategies based on nurses' vaccine hesitancy profiles and predictors. In addition to vaccine believers, we identified other three profiles based on their 5C psychological antecedents, emphasizing the significance of establishing tailored vaccination campaigns. Further research into the prevalence of profile structure in other groups of healthcare workers is required.

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“…The adaptive immunity declines over time following infection and vaccination [ 11 ]. Table 1 in [ 12 ] provides a summary of the population-level immunity in various countries as of early 2021. Transient suppression, rather than herd immunity, has been suggested [ 13 ], highlighting the importance of small-scale discussions as opposed to focusing solely on country-wide approaches.…”

Section: Introductionmentioning

confidence: 99%

Population-Level Immunity for Transient Suppression of COVID-19 Waves in Japan from April 2021 to September 2022

Kodera,

Ueta,

Unemi

et al. 2023

Vaccines

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Multiple COVID-19 waves have been observed worldwide, with varying numbers of positive cases. Population-level immunity can partly explain a transient suppression of epidemic waves, including immunity acquired after vaccination strategies. In this study, we aimed to estimate population-level immunity in 47 Japanese prefectures during the three waves from April 2021 to September 2022. For each wave, characterized by the predominant variants, namely, Delta, Omicron, and BA.5, the estimated rates of population-level immunity in the 10–64-years age group, wherein the most positive cases were observed, were 20%, 35%, and 45%, respectively. The number of infected cases in the BA.5 wave was inversely associated with the vaccination rates for the second and third injections. We employed machine learning to replicate positive cases in three Japanese prefectures to validate the reliability of our model for population-level immunity. Using interpolation based on machine learning, we estimated the impact of behavioral factors and vaccination on the fifth wave of new positive cases that occurred during the Tokyo 2020 Olympic Games. Our computational results highlighted the critical role of population-level immunity, such as vaccination, in infection suppression. These findings underscore the importance of estimating and monitoring population-level immunity to predict the number of infected cases in future waves. Such estimations that combine numerical derivation and machine learning are of utmost significance for effective management of medical resources, including the vaccination strategy.

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Can Asia now learn from the experience of the West?

Cited by 4 publications

References 4 publications

Profiling vaccine believers and skeptics in nurses: A latent profile analysis

Profiling vaccine believers and skeptics in nurses: A latent profile analysis

Targeting COVID-19 vaccine hesitancy among nurses in Shanghai: A latent profile analysis

Population-Level Immunity for Transient Suppression of COVID-19 Waves in Japan from April 2021 to September 2022

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