The recent outbreak of Coronavirus cases has been found to be linked to a cluster in Nanjing city in Jiangsu province where more than 360 cases have been reported in the past 2 weeks.
Fresh covid outbreaks in countries which have extensively used Chinese vaccines on a significant percentage of populations fuel doubt over efficacy of these vaccines.
It is believed that one of the reasons for increase in demand for Sinovac is because of the people who are from mainland China or planning to go there.