The US Centers for Disease Control and Prevention said that the United States exists "vaccine derivative of spinal ash virus virus transmission"
Xinhua News Agency, Los Angeles, September 13 (Reporter Tan Jingjing) The American Centers for Disease Control and Prevention issued a statement on the 13th that the virus in the case and environmenta
The US Centers for Disease Control and Prevention said that the United States exists "vaccine derivative of spinal ash virus virus transmission"
Xinhua News Agency, Los Angeles, September 13 (Reporter Tan Jingjing) The American Centers for Disease Control and Prevention issued a statement on the 13th that the virus in the case and environmenta