KP.3.1.1
SARS-CoV-2 KP.3.1.1 Variant
KP.3.1.1 was the dominant variant in the United States and many other regions but is now declining as newer variants emerge.
Quick Facts
Transmissibility
High transmissibility, previously dominant in the US
Vaccine Evasion
Moderate immune evasion capabilities
Global Prevalence
Declining from previous dominance (54-60% in late 2024)
Symptoms & Signs
Common Symptoms
Distinctive Features
Prevention & Treatment
Prevention Strategies
Treatment Options
Standard COVID-19 antivirals and treatments remain effective
Key Mutations
Descendant of KP.3 with additional mutationsGlobal Surveillance
Key Research Findings
Represented 54-60% of US viruses at peak circulation
Increases have slowed significantly by late 2024
Descendant of the KP.3 lineage
Contributed to seasonal COVID patterns in 2024
High-Risk Groups
Related Variants
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JN.1
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Medical Disclaimer
This information is for educational purposes only and should not replace professional medical advice. Always consult with qualified healthcare providers for diagnosis, treatment, and medical guidance. Information last updated: 2025-06-22.