社交媒体与健康信息误传：用户生成内容的风险

社交媒体的出现，尤其是用户生成内容模式的兴起，虽然降低了用户发布信息的成本[1]，但是加剧了'online health-related misinformation'传播的现象。'misinformation'泛指内容有误的信息，既包含故意编造的'disinformation'，又包含无意的'false information'[2]。

社交媒体已经成为人们获取健康信息的主要渠道，国内外超过70%的人通过互联网和在线平台查询健康与疾病的相关信息[3][4]。COVID-19时期，Twitter、Facebook、微博等社交媒体平台成为中英文'citizen'使用率最高的健康信息检索途径[5][6]。随之而来的，用户生成内容模式的兴起[7-11]和监管机制的缺位，导致大量错误健康信息在社交媒体上传播，新冠疫情的爆发进一步加剧了这种趋势。

The emergence of social media, especially the rise of user-generated content, has reduced the cost of users publishing information [1], but has also exacerbated the phenomenon of 'online health-related misinformation'. 'Misinformation' refers to information that is inaccurate, including intentionally fabricated 'disinformation' and unintentional 'false information' [2].

Social media has become the main channel for people to obtain health information, with over 70% of people domestically and internationally searching for health and disease-related information through the internet and online platforms [3][4]. During the COVID-19 period, social media platforms such as Twitter, Facebook, and Weibo became the most popular health information retrieval channels for Chinese and English-speaking citizens [5][6]. The rise of user-generated content [7-11] and the lack of regulatory mechanisms have led to the spread of a large amount of erroneous health information on social media, which has been further exacerbated by the outbreak of the COVID-19 pandemic.