Before revision:  Therefore, in this paper, we release a novel  large-scale COVID-19 social media dataset from Weibo called Weibo-COV, covering more than 40 million tweets from 1 December 2019 to 30 April 2020.
After revision:  Therefore, in this paper, we release a novel large-scale COVID-19 social media dataset collected from Sina Weibo, named Weibo-COV, covering more than 40 million tweets from 1 December 2019 to 30 April 2020.