CNNworldWHO looking at studies that show impact of COVID-19 during pregnancyGisela Crespo, CNNJuly 11, 2020
CNNworldBioNTech says its COVID-19 vaccine will be ready by end of 2020, but global immunity may take a decadeGisela Crespo, CNNJuly 10, 2020
CNNworldScientists find another threat to Greenland’s glaciers lurking beneath the iceGisela Crespo, CNNFebruary 4, 2020
CNNworldEven short-term exposure to low levels of air pollution can increase risk of cardiac arrestGisela Crespo, CNNJanuary 30, 2020
