Major impact of COVID-19 national containment on activities in the French northern comprehensive cancer center.

The SARS-CoV-2 pandemic has significantly impacted cancer patient management. National and local recommendations to reduce SARS-CoV-2 transmission have been applied in a comprehensive cancer center located in Northern France. We prospectively measured key indicators for three successive eight-week periods: directly before, during, and right after the containment (from 16 March to 10 May 2020).