Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan.
Front Public Health. 2022 Jul 4;10:844543. doi: 10.3389/fpubh.2022.844543. eCollection 2022.
Real-time vaccine hesitancy surveillance is needed to better understand changes in vaccination behaviors. We aim to understand the association between coronavirus disease 2019 (COVID-19) outbreaks and population vaccine hesitancy and to monitor the dynamic changes in vaccination behaviors. We used the autoregressive integrated moving average model to examine the association between daily internet search volume for vaccines and two waves of COVID-19 local outbreaks in Taiwan from 19 March to 25 May, 2021. During the small-scale outbreak, the search volume increased significantly for 7 out of 22 days with an average increase of 17.3% ± 10.7% from the expected search volume. During the large-scale outbreak, the search volume increased significantly for 14 out of 14 days, with an average increase of 58.4% ± 14.7%. There was a high correlation between the search volume and the number of domestic cases ( = 0.71, < 0.001). Google Trends serves as a timely indicator to monitor the extent of population vaccine willingness.
实时疫苗犹豫监测对于更好地了解接种行为的变化非常必要。我们旨在了解 2019 年冠状病毒病（COVID-19）疫情爆发与人群疫苗犹豫之间的关联，并监测接种行为的动态变化。我们使用自回归综合移动平均模型，于 2021 年 3 月 19 日至 5 月 25 日期间，分析了每日互联网疫苗搜索量与台湾两波 COVID-19 局部疫情之间的关联。在小规模疫情爆发期间，22 天中有 7 天的搜索量显著增加，与预期搜索量相比平均增加 17.3% ± 10.7%。在大规模疫情爆发期间，14 天中有 14 天的搜索量显著增加，平均增加 58.4% ± 14.7%。搜索量与国内病例数之间具有高度相关性（ = 0.71， < 0.001）。谷歌趋势是一个及时的指标，可以监测人群疫苗接种意愿的程度。
