Variants

COVID-19

Last Updated: June 30, 2022

Overview

Variants have been identified worldwise. Certain variant strains are known as variants of concern because they spread more easily than other strains, meaning they are more contagious. These new variants may also cause more severe illness. The increased spread of COVID-19 results in more illness, hospitalizations and deaths.

Variant strains are expected to continue to be identified in the future. International scientific and public health communities continue to work to understand the biological significance of these strains, including how current vaccines may help protect against them.

Several variant strains of COVID-19 have been identified in Alberta.

What We Know

Alberta is continuously monitoring for all variant strains of COVID-19. Refer to Alberta Health for the latest case numbers.

Omicron

Delta

Research is ongoing to look at vaccine effectiveness against new COVID-19 strains that come up.

Symptoms of COVID-19 caused by variants are the same as original COVID-19.

While the variants of concern spread more easily, they spread in the same way as original COVID-19. This means the same types of preventive strategies will be effective. However, these variants can more easily take advantage of any relaxation of those preventive measures.

Reduce Your Risk & Help Prevent the Spread of COVID-19

To protect yourself and those around you, take these steps to prevent the spread of COVID-19, even if immunized: