What is the XEC Variant?

The Centers for Disease Control and Prevention (CDC) has classified the XEC variant as a recombinant strain, created from two different sublines of the Omicron family: KS.1.1 and KP.3.3. First reported in Berlin at the end of June, XEC cases have rapidly multiplied across several European countries, including Germany, France, Denmark, and the Netherlands, with hundreds of documented infections.

Reports indicate that XEC has also surfaced in at least 25 states across the U.S., although this number may be understated due to the limited genetic testing on positive cases. RTI International epidemiologist Joëlla W. Adams highlights that patterns observed in Europe often provide vital clues about potential outbreaks in the U.S.

Is XEC More Contagious?

Initial assessments suggest that while XEC doesn't necessarily lead to more severe illness, it is part of the class of variants recognized for their heightened transmissibility. As Omicron continues to dominate worldwide, XEC may further assert its presence, particularly as we approach the flu season—a time when respiratory illnesses typically surge.

Adams explained, “We expect a complicated season ahead because of the likely co-circulation of multiple viruses,” emphasizing the significance of vaccination and booster shots as essential defenses against this evolving threat.

Vaccination: Your Best Line of Defense

Despite concerns over the XEC variant, current COVID-19 vaccines remain largely effective. The CDC states that the vaccines, not specifically designed for XEC but closely related to its hybrid strains, continue to provide protection.

CDC spokesperson Rosa Norman reassured the public that vaccines and treatments are expected to work against circulating variants, encouraging everyone aged six months and older to obtain an updated COVID-19 vaccine for the 2024-2025 season. Norman also urges Americans to keep track of the latest variant data through the CDC's COVID Data Tracker.

What Are the Symptoms?

As for symptoms, there is currently no evidence indicating unique signs associated with the XEC variant. It carries the same potential symptoms as other COVID-19 strains, which typically appear within two to 14 days after exposure. Common symptoms include:

Fever or chills Cough Shortness of breath or difficulty breathing Fatigue Muscle or body aches Headache Loss of taste or smell Sore throat Congestion or runny nose Nausea or vomiting Diarrhea

The CDC strongly advises seeking medical attention if you experience severe symptoms such as trouble breathing, persistent chest pain, new confusion, or bluish skin.

Dominant Strain in the U.S.

Currently, the COVID-19 variant KP.3.1.1 holds the title of the dominant strain in the United States, accounting for over 50% of infections. The CDC's data tracking shows that between September 1 and September 14, 52.7% of positive infections were from this strain, followed by KP.2.3 at 12.2%.

As the virus continues to evolve, vigilance and adherence to public health guidelines remain crucial. Monitoring and adapting to new variants like XEC are essential to controlling the pandemic's trajectory.

Stay informed and prepared—protection starts with you!