COVID-19 vaccine will be delayed by one day due to a winter storm wreaking havoc in the United States, the company has confirmed.Henry said Pfizer has committed to providing increased doses between now and the end of March, and she is hopeful the province will receive an increased number of doses from Moderna.With deliveries set to ramp up, Henry said she is now confident the gap between vaccine doses can safely be extended to up to three months if necessary.[ Sign up for our Health IQ newsletter for the latest coronavirus updates ]In B.C., researchers have monitored vaccinated residents of long-term care homes after they connected with people with COVID-19, Henry said.