• Opinion: When you can't persuade the unvaccinated with facts, try this instead
• What experts are learning about Lambda, a coronavirus 'variant of interest'
• US airlines cancel hundreds of flights
원문출처 : https://www.cnn.com/2021/08/07/world/covid-vaccine-booster-shot-inequality-intl-gbr-cmd/index.html
원문출처 : https://www.cnn.com/2021/08/07/world/covid-vaccine-booster-shot-inequality-intl-gbr-cmd/index.html