The protection that vaccines provide against severe disease continues to be strong even many months after immunization.This occurs whether this immunity was generated by infection, vaccines, or both. Omicron has demonstrated increased transmissibility and capacity to evade the body’s immune response compared to previous versions of the virus.Omicron, along with its sub-variants, is the currently circulating variant of concern (VOC) in Alberta. These changes can cause the emergence of new “variants” of the original virus and may have different properties than the original virus, such as increased transmissibility or the ability to cause more severe disease. ![]() ![]() All viruses evolve over time through genetic variations.A large body of evidence suggests that vaccines are safe and effective against COVID-19.
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