Across the United States, prized chickens are laying life-saving eggs at secret farms.
원문출처 : https://www.cnn.com/2020/03/27/health/chicken-egg-flu-vaccine-intl-hnk-scli/index.html
원문출처 : https://www.cnn.com/2020/03/27/health/chicken-egg-flu-vaccine-intl-hnk-scli/index.html