AstraZeneca COVID-19 vaccine between March 10 and March 19 became eligible on Monday to book an appointment for their second shot.However, some expressed frustration with a lack of available bookings and vaccine supply.Last week, a spokesperson for the Ontario Ministry of Health told Global News around 100,000 people received their first dose of AstraZeneca during that time frame.There are approximately 55,000 doses in the province set to expire at the end of May.Ontario Pharmacists Association CEO Justin Bates said approximately 31,000 doses are located in community pharmacies.“We started the planning process about seven days go, working with the distributor to determine where all of the remaining 31,000 doses are located,” Bates told.