Several experts who spoke to CBC News say vaccinated individuals are helping to curb transmission to those not yet protected against COVID-19. But with more than half the population not yet fully vaccinated, millions remain at risk of getting infected. While several experts who spoke to CBC News say vaccinated individuals are helping to curb transmission to those not yet protected, the precise mechanism behind why COVID-19 vaccines are likely reducing transmission isn't entirely clear. People are pictured waiting in line outside of Canada Place for their COVID-19 vaccination in Vancouver on June 21. Army health officials inoculate people with a COVID-19 vaccine at a camp held in Colombo, Sri Lanka, on July 15.

Source: CBC News July 17, 2021 08:00 UTC