What we know about the new 'cicada' COVID-19 variant

March 28, 2026 - 22:44

A new SARS-CoV-2 variant, officially designated BA.3.2, is drawing attention under the informal nickname "cicada." The moniker stems from its unique pattern of emergence, mirroring the insect's life cycle. This variant first appeared in early 2024, subsequently entered a period of low circulation and dormancy, and has now resurfaced in the United States as of late last year.

Health authorities are monitoring the strain's characteristics. Early data suggests it possesses a set of mutations distinct from other currently circulating variants. Scientists are working to determine if these genetic changes translate to any significant difference in transmissibility, severity, or potential for immune evasion compared to dominant strains like JN.1.

While its sudden reappearance is notable, experts urge the public to rely on established public health measures. Current vaccines and antiviral treatments are expected to retain effectiveness against severe outcomes from this variant. Monitoring wastewater signals and case clusters will be crucial to understanding the cicada variant's trajectory and impact in the coming weeks. Health officials emphasize that continued vigilance and updated vaccinations remain the best defense against all evolving COVID-19 strains.