WHO says China's Sinopharm, Sinovac vaccines meet efficacy standards

The vaccine makers shared their data with the WHO's Strategic Advisory Group of Experts on Immunisation last week, Alejandro Cravioto told reporters in Geneva, according to Sputnik.

"The information that the companies shared publicly at the meeting last week clearly indicates that they have levels of efficacy that would be compatible with the requirements," he said.

Cravioto added that both vaccines lacked data on trials in elderly patients and people with comorbidities. He stressed that further safety and efficacy studies were needed to assess the impact of the shots on sub-populations.