COVID-19 Vaccine Hesitancy Linked to Persistent Nonvaccination in England

As COVID-19 vaccination programs unfolded across England, overall hesitancy declined, but a significant portion of the unvaccinated population remained resistant due to deeply held beliefs, according to research published in The Lancet. The study, based on data collected between January 2021 and March 2022, reveals a complex landscape of motivations behind vaccine decisions.

Understanding the Shift in Hesitancy

Researchers analyzed data from 1,137,927 adults, identifying patterns in vaccine hesitancy over time. Initially, hesitancy peaked at 8.0% in early 2021, dropping to 1.1% by the start of 2022 before a slight rise to 2.2% in early 2022. At the time of survey participation, 318,729 adults, or 28.0% of those surveyed, remained unvaccinated.

Demographic Patterns of Hesitancy

The study pinpointed specific demographic groups with higher rates of hesitancy. Adults aged 18 to 24 were over six times more likely to be hesitant compared to those aged 55 to 64 (adjusted odds ratio [aOR], 6.41; 95% CI, 6.11-6.73). Hesitancy was also more prevalent among women (aOR, 1.37; 95% CI, 1.34-1.40) and individuals living in more deprived areas (aOR, 1.43; 95% CI, 1.38-1.48).

Did You Know? Researchers followed 24,229 hesitant participants through May 2024 to assess long-term vaccination rates.

The Roots of Persistent Hesitancy

Investigators categorized the reasons for hesitancy into eight distinct groups. While concerns about long-term health effects (40.7%), vaccine effectiveness (38.9%), and adverse effects (36.8%) were common, these concerns tended to diminish as the vaccination rollout progressed. However, hesitancy rooted in mistrust – of vaccine developers, a low perception of personal risk, and generalized anti-vaccine sentiment – proved far more durable.

Among those who initially expressed hesitancy, 65.0% (15,744 of 24,229 participants) eventually received at least one vaccine dose. However, persistent hesitancy was strongly linked to lower educational attainment, unemployment, smoking, and a prior, unconfirmed COVID-19 infection.

Expert Insight: The study suggests that addressing vaccine hesitancy requires a nuanced approach. While providing information can alleviate concerns based on uncertainty, overcoming deeply ingrained mistrust demands more targeted and community-specific strategies.

A generalized opposition to vaccines was the strongest predictor of remaining unvaccinated, more than tripling the odds of nonvaccination (aOR, 3.10; 95% CI, 2.70-3.56). Similar elevated odds were observed for those who believed the impact of COVID-19 was exaggerated (aOR, 3.21; 95% CI, 2.87-3.60), distrusted vaccine developers (aOR, 2.63; 95% CI, 2.37-2.93), or did not perceive COVID-19 as a personal risk (aOR, 2.19; 95% CI, 2.01-2.39).

What Could Happen Next

Future vaccination campaigns could benefit from a more targeted approach, focusing on addressing the underlying mistrust that fuels persistent hesitancy. Community-based interventions, tailored messaging, and engagement with trusted local leaders could prove more effective than broad public health announcements. Further research may also be needed to understand the specific factors driving hesitancy within different communities.

Frequently Asked Questions

What percentage of adults surveyed reported some form of vaccine hesitancy during the study period?

3.3% (37,982) of the 1,137,927 adults surveyed reported some form of vaccine hesitancy.

Which age group showed the highest odds of vaccine hesitancy?

Adults aged 18 to 24 years showed markedly higher odds of hesitancy compared with those aged 55 to 64 years (adjusted odds ratio [aOR], 6.41; 95% CI, 6.11-6.73).

What was identified as the strongest predictor of remaining unvaccinated among hesitant participants?

A generalized opposition to vaccines more than tripled the odds of persistent nonvaccination (aOR, 3.10; 95% CI, 2.70-3.56).

How might understanding these patterns of hesitancy inform future public health strategies?