BEIJING -- China's vaccine diplomacy faces a setback as questions arise about the efficacy and safety of its coronavirus inoculations while the country speeds a large-scale rollout despite the candidates remaining in the clinical trial phase.
Xi made inoculation diplomacy a key part of global strategy

A Sinovac production line for the coronavirus vaccine at its Beijing site. (Photo by Shin Watanabe)
BEIJING -- China's vaccine diplomacy faces a setback as questions arise about the efficacy and safety of its coronavirus inoculations while the country speeds a large-scale rollout despite the candidates remaining in the clinical trial phase.