Urgent Alert: 'Cicada' Covid Variant BA.3.2 Detected in 23 Countries
A new and highly mutated COVID-19 variant, officially designated as BA.3.2 and colloquially known as 'Cicada', is rapidly spreading across the United States and 23 other nations. Health authorities have issued urgent warnings, expressing concerns that this strain may partially evade existing vaccines, potentially undermining public health defences. The variant, named for its long hibernation and noisy resurgence, is fuelling a steady increase in cases worldwide, with early data indicating it could be exceptionally contagious, prompting officials to heighten surveillance and preparedness measures.
Origins and Global Spread of the Cicada Variant
BA.3.2 is an offshoot of the Omicron subvariant of SARS-CoV-2, the virus responsible for COVID-19. It was first detected in South Africa in November 2024 but did not begin circulating more widely until September 2025. According to a recent report from the Centers for Disease Control and Prevention (CDCP), the variant has now been identified in 23 countries and accounts for up to 30% of cases in certain European regions. In the United States, the variant initially appeared in a traveler passing through San Francisco International Airport from the Netherlands in June 2025. However, it was not until January 2026 that BA.3.2 was confirmed in a clinical sample from a US patient. As of February 11, Cicada had been detected in four US travelers, five patients, and in airline and wastewater samples across 25 states, including New York, New Jersey, and Connecticut.
Expert Insights on Vaccine Evasion and Public Health Risks
Virologist Andrew Pekosz highlighted the variant's genetic profile, stating, 'It has a lot of mutations that may cause it to look different to your immune system.' Dr. Marc Siegel, a physician at NYU Langone Health, added, 'There is concern that it could represent a significant public health risk, but since the prevalence is still so low, it is too soon to predict this on a community-wide basis.' Dr. Robery H. Hopkins Jr., Medical Director of the National Foundation for Infectious Diseases, cautioned, 'It is possible we will see Cicada drive a summer COVID surge and become the dominant strain in the United States, but that is by no means certain.' Despite these warnings, experts emphasise that vaccines continue to offer protection, particularly against severe illness. Dr. Adolfo García-Sastre, Director of the Global Health and Emerging Pathogens Institute at Mt. Sinai, noted, 'It's not completely clear how effective the current vaccine will be, but it likely still has some effectiveness.'
Symptoms and Health Recommendations
The Cicada variant does not appear to cause symptoms different from earlier strains, and there is currently no evidence it leads to more severe illness. Epidemiologist Dr. Syra Madad explained, 'That’s really the big question with any COVID variant at this point. So far there is no evidence that it is causing more severe illness on a population level.' Common symptoms, as reported by Today, include:
- Cough
- Fever or chills
- Sore throat
- Congestion
- Shortness of breath
- Fatigue
- Headache
- Loss of smell or taste
- Gastrointestinal issues
Symptoms can vary and may resolve with rest, hydration, and over-the-counter medications. The variant can also cause asymptomatic infections, meaning individuals may not feel sick but can still transmit the virus. The CDCP recommends that if you suspect you have COVID-19, you should:
- Stay home and avoid contact with others
- Wear a high-quality mask if you need to be around people
- Focus on recovery with rest and hydration
- Manage fever or pain with over-the-counter medications
Seek emergency care if you experience severe symptoms such as difficulty breathing, chest pain, confusion, or bluish lips or skin.
Broader Context and Ongoing Threats
COVID-19 remains a significant public health threat, contributing to an estimated 290,000 to 450,000 hospitalisations and 34,000 to 53,000 deaths in the US in 2025 alone, according to the CDCP. While BA.3.2 possesses many spike protein mutations that could reduce immunity, the overarching message from health experts is that vaccination remains a critical tool in mitigating the impact of the virus. As the Cicada variant continues to spread, ongoing monitoring and adherence to public health guidelines are essential to curb its transmission and protect vulnerable populations.
