Extreme heat creating obstacles for COVID-19 vaccination program in parts of B.C. A record-breaking heat wave has created a hiccup for B.C.'s COVID-19 vaccination program, as several clinics in the Lower Mainland are postponing appointments or redirecting patients to other locations. Social Sharing CBC News · Posted: Jun 28, 2021 8:56 PM PT | Last Updated: June 29 Some British Columbians have seen their vaccination appointments postponed or redirected because of an extreme heat wave.(Evan Mitsui/CBC)