Joel Goldenberg / Joel Goldenberg Photo The Bill Durnan Arena vaccination site in Côte des Neiges-NDG, which will be open until Aug. 28. The CIUSSS Centre-West announced adjustments to its vaccination schedules at various sites, in light of most Montrealers now getting second doses of the COVID-19 vaccine. âWe are entering into a new phase of our response to COVID-19, and we are proud to announce that we have now administered over 350,000 vaccinations,â says the CIUSSS statement. âWe are indeed grateful to the women and men who have been critical to our success.â The statement adds that changes are being made because âwe are striving to match our services with anticipated demand while ensuring residents of our territory have easy access to our vaccination sites. We are also taking into account that it takes less time to administer a second dose than a first dose.â