VICTORIA—British Columbia is extending the interval between the two doses of the Pfizer-BioNTech COVID-19 vaccine, the province’s top doctor said Monday. Dr. Bonnie Henry told a news briefing that further delays in the production and delivery of the vaccine over the next two weeks prompted health officials to extend the time period between the shots from 35 to 42 days. “It’s about choosing in the short term to give more people protection from dose one instead of giving some people full protection and leaving others with none,” she said. “We will make up these doses and we will be providing the second dose of vaccine to everybody as soon as we possibly can.” The province had assured residents last week that it remained committed to administering second doses on Day 35 and Henry said officials learned over the weekend B.C. would receive even fewer doses than expected. “The amounts that …