CNNworldWHO director-general hopes the US will reconsider its withdrawal from the organizationNaomi Thomas, CNNAugust 7, 2020
CNNworldCovid-19 mask safety: Two or three layers best to protect against virus, study findsNaomi Thomas, CNNJuly 24, 2020
CNNworldPeople under the age of 20 are half as likely to contract COVID-19, researchers estimateNaomi Thomas, CNNJune 16, 2020
