Named after the insect that vanishes for years and then resurfaces all at once, the BA.3.2 “cicada” variant is raising eyebrows in public health circles. Here’s a calm, clear breakdown of what we actually know.

Mutations vs. Dominant Strains

• 70–75 US states detected (Feb 11)
• 25 Cases linked in N. Europe
• 30%

Where Did “Cicada” Come From — and Why Is It Back?

The “cicada” nickname fits almost too perfectly. Just like the insect that burrows underground for years before dramatically reappearing, this variant — officially known as BA.3.2 — first showed up in South Africa in November 2024, went quiet for months, and then quietly resurfaced in the U.S. around late December and early January.

It belongs to the well-known omicron family of variants, but what sets it apart is a notably high number of mutations — somewhere between 70 and 75 compared to the strains currently circulating. That’s significant because more mutations can sometimes help a virus slip past the immune defenses built up by vaccines or prior infections. As of early February, the CDC had detected it in 25 different U.S. states — though experts are quick to note that it still represents a small minority of overall COVID-19 cases nationwide.

Should You Be Worried? Here’s What the Experts Actually Say

Let’s be honest: the word “new variant” tends to send people spiraling. But the science, at least so far, is more reassuring than alarming. Dr. William Schaffner, an infectious disease specialist at Vanderbilt University Medical Center, says the early data does not suggest that “cicada” is more severe than previous variants, nor does it seem to produce unusual or dramatically different symptoms.

That said, most of what we currently know comes from laboratory data, not real-world clinical observations. Schaffner also noted that it may actually be less transmissible than other strains — though whether it can outpace competing variants remains an open question. In Northern Europe, it accounted for about 30% of cases this past winter in countries like Germany, Denmark, and the Netherlands, which is why public health officials are keeping a watchful eye on trends here in North America.

Will Your COVID-19 Vaccine Still Protect You?

This is the question most people really want answered. The short version: your vaccine may offer reduced protection against catching “cicada,” but it likely still guards you well against serious illness. Dr. Donald Milton, a respiratory disease expert at the University of Maryland, put it simply — the vaccine is still absolutely worth getting.

The current COVID-19 vaccine formulation is approved through fall 2026, so if you haven’t gotten your shot yet this season, you still can. And there’s good news on the horizon: scientists developing next fall’s vaccine are already looking at including protection specifically tailored to the “cicada” variant. Doctors generally recommend an annual COVID-19 shot — similar to the flu vaccine — though older adults and people with chronic health conditions may want to consider a second dose in late spring to get ahead of the typical summer surge.

Can Your At-Home Test Kit Still Detect It?

Yes — and this is one of the more reassuring pieces of news. Dr. Milton explains that at-home COVID-19 tests are built to detect parts of the virus that tend to stay stable even as the virus mutates. So your existing test kits should work just fine against “cicada.”

Just double-check that your tests haven’t expired — an expired kit won’t give you reliable results. And if you’re feeling symptoms, the usual advice still applies: stay home, test early, and reach out to your doctor. Nothing about that has changed.

The Bottom Line

“Cicada” is a variant worth watching — not panicking over. It’s still a minority strain in the U.S., doesn’t appear to be more dangerous than what we’ve seen before, and your existing tools (vaccines, testing, common sense precautions) remain effective. Stay informed, stay current on your vaccinations, and keep an eye on updates from the CDC as scientists learn more.