Research press release


Scientific Reports

COVID-19: Vaccination requirements may promote vaccine uptake in the USA

重症急性呼吸器症候群コロナウイルス2(SARS-CoV-2)に対するワクチン接種を、米国内での就労、就学や旅行の必須条件とすることは、ワクチン接種を望ましいとし、あるいはワクチン接種の効能を強調した雇用方針よりもワクチン接種を推進する効果が大きいと考えられるという研究結果を報告する論文が、Scientific Reports に掲載される。

今回、Dolores Albarracinたちの研究チームは、米国各地の成人299人を対象に、ワクチン接種が就労、旅行、就学の必須条件となった場合にワクチン接種を受ける意思があるかどうかを調べた。次に、合計1324人が参加した3件の実験が行われ、現在の雇用主または仮想の新しい雇用主がSARS-CoV-2に対するワクチン接種を必須条件とした場合、ワクチン接種が望ましいとした場合、ワクチン接種の効能を強調した場合のそれぞれでワクチン接種を受ける可能性が高くなるか、低くなるかを尋ねた。また、Albarracinたちは、心理学的質問票を用いて、参加者が規則に対して否定的に反応する傾向を測定し、仮想のワクチン接種要件によってワクチン接種に対する見方が影響を受けたかどうかを参加者に質問した。


Making vaccination against SARS-CoV-2 a requirement for work, school or travel in the USA may be more effective at promoting vaccine uptake than employer policies which express a preference for, or emphasize the benefits of, vaccination. The findings are published in Scientific Reports.

Dolores Albarracin and colleagues surveyed 299 adults from across the USA to identify whether they would be vaccinated against SARS-CoV-2 if it was required for work, travel or school. They then conducted three experiments in which a total of 1,324 participants were asked whether a hypothetical new or current employer requiring, preferring or emphasizing the benefits of vaccination against SARS-CoV-2 would make them more or less likely to be vaccinated. The authors also used a psychological questionnaire to measure the tendency of participants to react negatively to regulations and asked participants whether hypothetical vaccine requirements affected their perceptions of vaccination.

The authors found that 86% of the 299 people surveyed reported that they would get vaccinated if it was required for work, travel or school. In response to hypothetical workplace vaccination policies, participants reported stronger intentions to be vaccinated in response to vaccination being required, rather than preferred or promoted by the employer. Those who reported they tended to react negatively to regulations were found to be similarly or more positively influenced to be vaccinated as a result of vaccination requirements compared to those who tended to react neutrally or positively to regulations. Among participants who tended to react negatively to regulations, hypothetical vaccination requirements were not found to affect how beneficial they felt vaccination was, but did make them feel less morally obliged to be vaccinated when compared to vaccination being preferred or promoted. This suggests that while vaccination requirements may promote vaccination among those who tended to react negatively to regulations, this is not due to perceptions of vaccine benefits or a moral obligation to get vaccinated.

doi: 10.1038/s41598-021-00256-z


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