With lingering questions and delays surrounding COVID-19 vaccines in Ontario, here’s where things stand The province was to receive close to 157,000 doses of the Pfizer-BioNTech vaccine this week and says it expects its weekly supply from the company to range between 173,000 and 186,000 doses through the end of March.Officials say doses of the Moderna vaccine for next week will be lower than expected, at 47,400, but supply is expected to increase in March.[ Sign up for our Health IQ newsletter for the latest coronavirus updates ]The supply increase will coincide with an expected expansion of Ontario’s vaccine rollout to target the 80 and older group, seniors in congregate care and all Indigenous adults..