Cross-border worker feels 'blessed' to receive COVID-19 vaccine While Windsor-Essex saw the beginning of the COVID-19 vaccine roll out on Tuesday, some health care workers who work on the other side of the border got a bit of a head start. Social Sharing CBC News · Krista Wahby, who works at a Detroit hospital, received the COVID-19 vaccine on Friday.(CBC) comments While Windsor-Essex saw the beginning of the COVID-19 vaccine roll out on Tuesday, some health care workers who work on the other side of the border got a bit of a head start. Krista Wahby, a critical care pharmacy specialist at the Detroit Medical Center's Harper University Hospital, received the vaccine on Friday afternoon.