The online vaccination booking platform opened Friday for those aged 40-44, with all four vaccines (Pfizer, Moderna, AstraZeneca, Johnson & Johnson) available.
Depending on demand, the booking platform will then open to those aged 35-39, then 30-34.
Officials expect vaccinations to peak in June. At the end of May, it is estimatred that more than 5.6 million jabs will have been administered, with over 2 million having received their second dose. Those vaccinated with the Johnson & Johnson vaccine need only one dose.