Highly Mutated ‘Cicada’ COVID Variant Spreads to 25 U.S. States and 22 Countries
The variant earned its nickname due to its unusual evolutionary pattern—first identified in South Africa in November 2024, it remained largely undetected "underground" for over a year before resurfacing with a massive number of genetic changes in early 2026.
Genetic Profile and Immune Escape: According to reports from the CDC and the World Health Organization (WHO), the Cicada variant is notable for carrying 70 to 75 mutations in its spike protein. This is more than double the number found in the previously dominant JN.1 lineage. Scientists warn that this "staggering" level of mutation provides the virus with significant immune escape capabilities, allowing it to partially bypass the protection granted by prior infections and current 2025–2026 vaccine formulations.
Global and Domestic Spread: While its prevalence in the U.S. remains low (approximately 0.19% of sequenced cases), it has been detected in 25 states—including New York, California, and Florida—primarily through wastewater surveillance and traveler testing. In contrast, the variant has gained a stronger foothold in Northern Europe, accounting for nearly 30% of cases in Denmark, Germany, and the Netherlands over the past winter months.
Clinical Severity and Symptoms: Despite its ability to reinfect individuals, public health experts emphasize that there is currently no evidence that the Cicada variant causes more severe illness or higher hospitalization rates than previous Omicron subvariants. Common symptoms remain consistent with recent strains, including:
Severe sore throat (frequently described as a "razorblade" sensation)
Fatigue and persistent coughFever, congestion, and occasional gastrointestinal issues
Health authorities, including the National Foundation for Infectious Diseases, suggest that while the variant warrants close observation, existing hybrid immunity from past vaccinations and infections continues to provide strong protection against life-threatening outcomes.
