Evolving variants of a virus may allow it to spread more easily or make it resistant to treatments or vaccines. New variants of SARS-CoV-2, the virus that causes COVID-19, will continue to occur. This fact sheet, created by TMF Health Quality Institute, will provide fundamental knowledge about COVID-19 variants including: 

• How the virus may change
• Older adults at risk 
• Case surges affect health care resources
• Variants in the United States
• Monitoring variants

Also available in United States Spanish and Puerto Rico Spanish.