BEIJING/HONG KONG- Alibaba Health Information Technology said on Thursday it has signed a strategic cooperation agreement with Chinese coronavirus vaccine developer Sinovac Biotech. The two firms will jointly build a platform for coronavirus vaccine inoculation in the future, Alibaba Health said in Chinese social media platform Weibo, without giving further details. Sinovac's coronavirus vaccine candidate CoronaVac, being tested in final-stage large-scale trials in Brazil, Indonesia and Turkey, has already been given to tens of thousands of people via an emergency use program China launched in July. They include around 90% of the firm's employees and their families. The two firms will also cooperate in broader areas including online booking of vaccines and post-vaccination health condition follow-up, Alibaba Health said.