@文章{信息:doi/10.2196/39504，作者="Ferawati, Kiki和Liew, Kongmeng和Aramaki, Eiji和Wakamiya, Shoko"，标题="监测日本和印度尼西亚推特上COVID-19疫苗副作用的提及:信息流行病学研究"，期刊="JMIR信息流行病学"，年="2022"，月=" 10月"，日="4"，量="2"，数="2"，页="e39504"，关键词="COVID-19;疫苗;COVID-19疫苗;辉瑞公司;现代化;疫苗副作用;副作用;推特;背景:2021年是COVID-19疫苗接种的一年，这在普通人群中引发了更广泛的讨论，一些人支持接种疫苗，一些人反对接种疫苗。推特是一个受欢迎的社交媒体平台，在提供关于COVID-19疫苗的信息方面发挥了重要作用，并有效地观察了公众的反应。 We focused on tweets from Japan and Indonesia, 2 countries with a large Twitter-using population, where concerns about side effects were consistently stated as a strong reason for vaccine hesitancy. Objective: This study aimed to investigate how Twitter was used to report vaccine-related side effects and to compare the mentions of these side effects from 2 messenger RNA (mRNA) vaccine types developed by Pfizer and Moderna, in Japan and Indonesia. Methods: We obtained tweet data from Twitter using Japanese and Indonesian keywords related to COVID-19 vaccines and their side effects from January 1, 2021, to December 31, 2021. We then removed users with a high frequency of tweets and merged the tweets from multiple users as a single sentence to focus on user-level analysis, resulting in a total of 214,165 users (Japan) and 12,289 users (Indonesia). Then, we filtered the data to select tweets mentioning Pfizer or Moderna only and removed tweets mentioning both. We compared the side effect counts to the public reports released by Pfizer and Moderna. Afterward, logistic regression models were used to compare the side effects for the Pfizer and Moderna vaccines for each country. Results: We observed some differences in the ratio of side effects between the public reports and tweets. Specifically, fever was mentioned much more frequently in tweets than would be expected based on the public reports. We also observed differences in side effects reported between Pfizer and Moderna vaccines from Japan and Indonesia, with more side effects reported for the Pfizer vaccine in Japanese tweets and more side effects with the Moderna vaccine reported in Indonesian tweets. Conclusions: We note the possible consequences of vaccine side effect surveillance on Twitter and information dissemination, in that fever appears to be over-represented. This could be due to fever possibly having a higher severity or measurability, and further implications are discussed. ", issn="2564-1891", doi="10.2196/39504", url="https://infodemiology.www.mybigtv.com/2022/2/e39504", url="https://doi.org/10.2196/39504", url="http://www.ncbi.nlm.nih.gov/pubmed/36277140" }