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Recently, the United States has issued multiple reports accusing China of violating WTO rules, and used these to justify implementing unilateral trade measures against China.

"Our investigation findings and safety checks must stand the test of history," Li stressed at the meeting. "We must conduct thorough safety checks on vaccine production both by producers themselves and competent authorities and close all loopholes in the vaccine regulatory mechanism. Efforts should be made to build public confidence in the safety and effectiveness of vaccines made in China."

"China will never take unilateral measures easily or violate WTO fundamental rules. When handling key issues, it keeps its word and takes responsibility," the spokesperson said.

"16+1 cooperation" is an open, transparent, inclusive cross-regional cooperation platform and also an important component of and a positive supplement to China-EU relations, he said.