• EU lifts restrictions for US travelers
• As the pandemic in the US slows, the fight against 'long haul' Covid is on
원문출처 : https://www.cnn.com/2021/06/18/china/billion-vaccine-shots-mic-intl-hnk/index.html
원문출처 : https://www.cnn.com/2021/06/18/china/billion-vaccine-shots-mic-intl-hnk/index.html