first identified in India has now spread inside a Calgary hospital. Alpha, Beta, Gamma, Delta: WHO officially names COVID-19 variants of concern Four units are currently under outbreak status at Foothills Medical Centre, two of which have outbreaks with Delta cases.“As of June 7, 2021, AHS has identified 16 cases of the B.1.617.2 (Delta) variant in patients on two units at Foothills Medical Centre,” according to an Alberta Health Services email statement on Monday.“Management and caregivers on the affected units have been instructed to exercise extra vigilance with respect to PPE and fit-for-work screening.”An investigation is now underway to figure out the source of the outbreaks and how the virus spread.