The “Cicada” Variant: What You Require to Know About BA.3.2 and the Future of COVID-19
A new variant of COVID-19, nicknamed “Cicada” (officially BA.3.2), is gaining traction globally. Although currently not considered more dangerous than recent strains, its increasing prevalence and potential to evade immunity are raising concerns among health officials. This article breaks down what we know about BA.3.2, its spread, symptoms, and what it could mean for the future of COVID-19.
BA.3.2: A Variant Under Monitoring
The World Health Organization (WHO) has designated BA.3.2 as a Variant Under Monitoring (VUM). This means it exhibits characteristics that warrant close observation, particularly its ability to potentially bypass existing immunity. The variant first appeared in a respiratory sample collected in South Africa in November 2024.
Where is BA.3.2 Spreading?
As of February 11, 2026, BA.3.2 has been reported in 23 countries, including Germany, Denmark, the United Kingdom, the Netherlands, Japan, and Kenya. The United States is experiencing a notable increase, with the variant detected in 25 states. Initial U.S. Detection occurred on June 27, 2025, at San Francisco International Airport in California, identified in a traveler’s sample.
Detection methods include analyzing samples from travelers, airplane wastewater, clinical samples, and wastewater surveillance systems. Wastewater monitoring is a crucial early detection method, though the number of states submitting data to the CDC has declined since 2022.
Symptoms of the BA.3.2 Variant
BA.3.2, a mutated subvariant of Omicron, typically presents as a mild to moderate respiratory infection. Symptoms are similar to other COVID-19 lineages and include:
- Fever or chills
- Sore throat and hoarseness
- Dry, persistent cough
- Extreme fatigue
- Nasal congestion or runny nose
- Muscle and headache
Other symptoms can include diarrhea, nausea, eye irritation, and loss of taste or smell. As with other variants, asymptomatic infections also occur.
Immune Evasion and Vaccine Effectiveness
BA.3.2 carries 70 to 75 genetic changes in its spike protein, the part of the virus that vaccines target. This significant difference raises concerns about the current COVID-19 vaccine’s effectiveness against it. Researchers have found that BA.3.2 exhibits enhanced immune escape, reducing neutralization from antibodies generated by current vaccines.
However, current vaccines are still expected to provide protection against severe disease. The CDC notes that while BA.3.2 has the potential to evade immunity from prior infection or vaccination, it doesn’t currently pose additional risks to public health compared to circulating variants.
Future Trends and Ongoing Monitoring
The emergence of BA.3.2 highlights the virus’s continued evolution and the importance of ongoing surveillance. Monitoring the spread of BA.3.2 provides valuable information about its potential to evade immunity. The CDC and WHO are closely tracking the variant’s trajectory and genetic changes.
The situation underscores the need for continued vigilance and adaptation in public health strategies. While a major crisis like the early stages of the pandemic isn’t anticipated, staying informed and following recommended health guidelines remains crucial.
FAQ
Q: Is the BA.3.2 variant more dangerous than previous COVID-19 variants?
A: No, current evidence suggests BA.3.2 does not cause more severe disease than variants circulating in the winter of 2025-26.
Q: Will current COVID-19 vaccines protect against BA.3.2?
A: Vaccines are expected to continue providing protection against severe disease, but may be less effective at preventing infection.
Q: Has BA.3.2 been detected in Mexico?
A: As of this report, Mexican authorities have not confirmed the arrival of BA.3.2 within the country.
Q: What is wastewater surveillance and why is it important?
A: Wastewater surveillance involves testing sewage for the presence of viruses, providing an early warning system for detecting strain shifts.
Did you know? The BA.3.2 variant was first identified in November 2024, but remained under the radar until recently when it began spreading more rapidly.
Pro Tip: Stay up-to-date with your COVID-19 vaccinations and boosters to maintain the best possible protection against all variants.
Want to learn more about COVID-19 variants and public health recommendations? Explore the CDC website for the latest information.
