COVID-19 Variants
COVID-19 variants are different versions of the SARS-CoV-2 virus that causes COVID-19. New variants may emerge, disappear, or persist. Variants have specific genetic markers that could make the virus weaker or potentially more harmful than the one before.
In the United States, the most common COVID variants as of 03 February 2025 are XEC, KP.3.1.1, LP.8.1 and MC.1. The current Omicron variants include MC.1, KP.3 and LF.7.
Variants are concerning if the genetic changes result in it being:
- More transmissible: Allowing the virus to spread more easily from person to person.
- More infectious
- Less responsive to vaccine protection
- Less responsive to treatment
- Resistant to natural immunity
However, it's important to note that as new variants emerge, COVID-19 vaccines may be updated to help protect against variants. The Centers for Disease Control and Prevention (CDC) and other local and global public health authorities are constantly tracking the emergence of SARS-CoV-2 variants. Research also continues to develop potential treatments that are effective against viruses, including coronaviruses. While new variants are a concern, they may not diminish the effectiveness of treatments that target the immune system.
Overall, it's important to stay informed about COVID-19 variants and follow public health guidelines that may be updated based upon new information about variants. Vaccination with updated vaccines remains the best way to prevent COVID-19 and its variants because it helps keep the virus away from our bodies. If you have any concerns or questions about COVID-19 or its variants, it's always a good idea to ask your doctor for guidance.