Analyse @Billius27's tweets
@Billius27
| 56,435 followers
Our vaccine program, with its delayed peak rollout, extended dose intervals, and use of mixed doses has proven to be very effective at this stage, as shown below (ON Science Table). But by year-end we should anticipate a careful science-based plan to
extend boosters. /end https://t.co/56P8HbdcA0
extend boosters. /end https://t.co/56P8HbdcA0