The U.S. and some other countries have accused China of not giving WHO experts full access to data during the joint study in Wuhan. China's Foreign Ministry responded on Thursday, saying the U.S. is politicizing the issue by denying the report released by the WHO-China joint expert team. This is a clear evidence that they do not respect science and they're politicizing the origin tracing work, said Hua Chunying, Foreign Ministry Spokesperson.