SlateOfficial admits Chinese vaccines have low effectiveness as country explores mixing shots.Apr 11, 2021more_vert
Financial TimesChina considers mixing vaccines to bolster efficacyApr 11, 2021Primrose Riordan & Yuan YangBy Primrose Riordan & Yuan Yangmore_vert
CNBCChinese vaccines 'don't have very high protection rates,' top health official admitsApr 11, 2021more_vert