By getting vaccinated, Conway said, this further reduces community transmission of the virus. The virus primarily circulates among unvaccinated people in an uncontrolled manner, he said. From there, it can spread to the small proportion of vaccinated individuals who are more susceptible to infection and hospitalization because of age, comorbid conditions, and pre-existing issues with the immune system, he said.
“The reason community-based transmission is staying so high is because the pool of unvaccinated individuals is also remaining stubbornly high,” said Conway. “If we reduce the number of unvaccinated individuals, we will reduce the ability of the virus to spread and we will reduce infections and hospitalizations.
“This is not a sign that vaccines don't work – it's a sign that we aren't yet vaccinating fast enough.”
Results showed that six months after receiving two doses of the COVID-19 vaccine, little protection remained against symptomatic illness from the Omicron variant. However, two doses of the vaccine still protected against hospital admission and death from Omicron, reducing the risk by 82 per cent.
The study also showed that three doses of the vaccine decreased the chances of developing symptomatic illness from Omicron by 61 per cent. A third dose of the COVID-19 vaccine also reduced the risk of hospitalization and death due to the Omicron variant by 95 per cent.
This reaffirms the importance of getting vaccinated, Muhajarine said, referring specifically to the added protection that comes with a third dose of the COVID-19 vaccine.
“These vaccines, particularly the booster dose, protect people really well against serious COVID,” he said, referring to cases where patients require hospital care or intensive care involving intubation or ventilation, as well as death from COVID-19.