BEIJING/SINGAPORE : China has several novel coronavirus vaccine candidates in the late stage of development.Below is a summary of its efforts to develop vaccines.How many Chinese vaccines are in phase 3?Four of the world's seven vaccines that are in the third phase of trials are from China.Two of the candidates are from China National Biotec Group (CNBG), a unit of state-owned pharmaceutical giant China National Pharmaceutical Group (Sinopharm).Sinovac Biotech is developing the third candidate called CoronaVac, while CanSino Biologics is working with state military research unit Academy of Military Medical Sciences on Ad5-nCoV.Who is partnering with China for trials?Argentina, Peru, Morocco, Bahrain and the United Arab Emirates have allowed.