@Marco_Piani @paimadhu ^ Protection against infection and transmission. Protection against severe much higher.
@Marco_Piani@paimadhu^预防感染和传播。对严重事故的防护要高得多。
@Marco_Piani @paimadhu ^ Protection against infection and transmission. Protection against severe much higher.
@Marco_Piani@paimadhu^预防感染和传播。对严重事故的防护要高得多。