The International Cancer Screening Network (ICSN) organized a webinar on COVID-19 and Cancer Screening on May 10, 2021. The webinar focused on the results of the ICSN survey assessing the effects of the first wave of COVID-19 on cancer screening around the world. Douglas Puricelli Perin, MPH, ICSN Program Coordinator presented the results of the ICSN survey together with a literature review about the disruptions in cancer screening caused by previous disasters. In addition, Iris Lansdorp-Vogelaar, PhD, Associate Professor at the Department of Public Health of Erasmus Medical Center, and colleagues from the COVID-19 and Cancer Global Modeling Consortium presented their latest work.