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
CNNworldAir pollution can cross state lines, and with deadly consequences, study saysGisela Crespo, CNNFebruary 13, 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
