China’s Race for First Covid-19 Vaccine Raises Safety Questions

Chinese companies have made a seemingly unstoppable push to the front of the race for a coronavirus vaccine. Yet their speedy ascent has been unhindered by common scientific setbacks being reported by Western rivals, raising questions about how stringently they are vetting and reporting potential safety issues.The lack of clarity over the standards and safeguards used by Chinese developers is drawing concern because some of their vaccines are…