SARS-CoV-2 variants of concern

Viruses constantly change through mutation and many variants of the SARS-CoV-2 virus have been observed worldwide. Not all mutations have a significant impact on the spread of the virus, but some can provide the virus with selective advantages, such as increased transmissibility or the ability to evade immune responses.

• Summary of COVID-19 virus variants in Ireland

• WHO/ECDC Guidance on variants of concern detection