Ma Jing, Luo Jianchen, Xu Mingqing
Mental Health Centre, West China Hospital, Sichuan University, Chengdu, China.
Liver Surgery and Liver Transplantation Centre, West China Hospital, Sichuan University, Chengdu, China.
Ann Transl Med. 2022 Aug;10(15):827. doi: 10.21037/atm-22-3064.
The coronavirus disease of 2019 (COVID-19) has had catastrophic effects worldwide. Mounting efforts for vaccination against COVID-19 have achieved tremendous progress. Online searching is a voluntary behavior of people might reflect the public attention and awareness.. Screening and analyzing the details of vaccine related searches may help the government to grasp the trend of public opinion and provide a reference for vaccination strategies and future efforts to protect public health.
Three terms related to COVID-19 and COVID-19 vaccine as well as daily relative search volumes (RSV) were retrieved in the Baidu Index (BDI) from 1 January 2020 to 1 July 2021 in China. Besides the national total data, those of the individual provinces/cities/region of Beijing, Shanghai, Guangdong, Heilongjiang, Sichuan, and Tibet were also included. Vaccine-related policies were also gathered during this period. The vaccination rates within China were derived from the National Health Commission of the People's Republic of China, from 23 March 2021 to 1 July 2021. The searching index was calculated by the searching volume and curve graphs were used to demonstrate the variation and the related trend of the RSV and vaccination rates.
A total of 548 days' BDI data were retrieved. The national and provincial curves of the BDI exhibited similar fluctuating upward trends, with 5 obvious rises, especially in COVID-19 vaccine searching volume. The vaccination number was correlated with the searching volume growth of COVID-19 vaccine and vaccine uptake (r=0.382, P<0.001; r=0.256, P=0.010). Relevant vaccination events corresponded to the variation searching trend and were attributed to or were influenced by the searching variation.
Public awareness about vaccination against COVID-19 was related to the implementation of vaccine policies. Positive vaccine-related policy and high public awareness about vaccination could play a vital role in maximizing the vaccination uptake. Advanced internet data grabbing could consolidate public information in an efficient and timely manner. These findings would support efforts to utilize the big data monitoring of the public opinion to forecast and guide the public health policies. Dynamic monitoring as well as prevention and timely adjustment under this supervision could be expected.
2019年冠状病毒病（COVID-19）在全球范围内造成了灾难性影响。针对COVID-19的疫苗接种工作不断加大力度，已取得巨大进展。网络搜索是人们的一种自发行为，可能反映公众的关注度和意识。筛选和分析与疫苗相关搜索的细节，可能有助于政府把握舆情趋势，为疫苗接种策略及未来保护公众健康的工作提供参考。
在中国百度指数（BDI）中检索2020年1月1日至2021年7月1日期间与COVID-19和COVID-19疫苗相关的三个术语以及每日相对搜索量（RSV）。除全国总体数据外，还纳入了北京、上海、广东、黑龙江、四川和西藏等个别省/市/自治区的数据。在此期间还收集了疫苗相关政策。中国的疫苗接种率来自中华人民共和国国家卫生健康委员会，时间为2021年3月23日至2021年7月1日。搜索指数通过搜索量计算得出，并用曲线图展示RSV和疫苗接种率的变化及相关趋势。
共检索到548天的BDI数据。BDI的全国和省级曲线呈现出相似的波动上升趋势，有5次明显上升，尤其是在COVID-19疫苗搜索量方面。疫苗接种数量与COVID-19疫苗搜索量增长及疫苗接种率相关（r = 0.382，P < 0.001；r = 0.256，P = 0.010）。相关疫苗接种事件与搜索变化趋势相符，并归因于搜索变化或受其影响。
公众对COVID-19疫苗接种的认知与疫苗政策的实施有关。积极的疫苗相关政策和公众对疫苗接种的高度认知在最大程度提高疫苗接种率方面可发挥至关重要的作用。先进的互联网数据抓取能够高效、及时地整合公众信息。这些发现将支持利用舆情大数据监测来预测和指导公共卫生政策的工作。有望在此监督下进行动态监测以及预防和及时调整。
