Health-care staff shortages could be on the way as COVID-19 vaccine mandates loom Like in Quebec, where only four per cent of health-care workers are not fully vaccinated, even a small reduction in the number of health-care workers able to practice would have a big impact, Church said.“Under normal circumstances, the system would be able to adjust to that, but we are in extraordinary circumstances,” he said, adding that military nurses have been deployed in the western province and intensive care units are at nearly double their normal capacity. “Every single health-care worker, under these circumstances matters,” he said.Dr.