Health

Stratus COVID‑19 Variant Surges: What to Know Now

Stratus COVID‑19 variant—also known as XFG—is the focus of growing attention worldwide. This new strain has been spreading steadily since early 2025. In this article, we explain its origins, spread, symptoms, risks, and how you can stay protected

What Is the Stratus COVID‑19 Variant?

Stratus COVID‑19 variant is a recombinant strain of the Omicron family. It emerged when two subvariants—LF.7 and LP.8.1.2—infected the same person and combined their genetic material. This kind of hybrid variant is designated with an “X” prefix, hence the technical name XFG. It was first detected in Canada in January 2025 and has since appeared in at least 38 countries. Its share of global cases rose from under 10% in early May to approximately 22 – 23% by late June 2025. In the U.S., it went from near zero in March to around 14% of all cases by late June, becoming the third most common strain.

How Quickly Is It Spreading?

Stratus is spreading at a notable pace. In the U.S., estimates show its share rose from 0 % in March to 2 % in April, 6 % in May, and 14 % by late June. Globally, it climbed from 7 % to 22.7 % across 38 countries in that same period. Certain regions like Texas are experiencing surges tied to Stratus, with wastewater data indicating it accounts for as much as 65 % of circulating strains in some areas. Test positivity rates are rising in at least 45 U.S. states.

What Are the Symptoms?

Symptoms of the Stratus COVID‑19 variant are mostly similar to those of recent Omicron strains—mostly mild and affecting the upper respiratory system. Common signs include fever, cough, sore throat, congestion, shortness of breath, fatigue, muscle aches, headache, nausea, vomiting, diarrhea, and loss of taste or smell.

However, one symptom that stands out is hoarseness or a raspy voice. Health professionals in Ireland and the UK have observed this distinctive sign more often in Stratus cases. It may serve as an early clue, although it remains anecdotal

Stratus COVID‑19 variant More Dangerous?

So far, data indicates that Stratus is not more severe than other Omicron subvariants. Hospitalization and death rates remain low in areas where infections are rising. Leading health bodies like the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC) classify Stratus as a “variant under monitoring,” meaning it’s being observed but not considered an immediate danger

There is some evidence of immune evasion—meaning the variant may partially dodge protections from past infection or vaccination—but current vaccines continue to protect well against severe disease.

How Can You Protect Yourself?

To stay safe from this new variant, follow the same precautions that have worked well so far:

See a doctor promptly if you experience severe symptoms such as chest pain, trouble breathing, confusion, or trouble waking up.

Keep your COVID-19 vaccinations and booster shots up to date.

Wash your hands regularly and practice good hygiene.

Wear a mask in crowded or poorly ventilated indoor spaces, especially during surges.

Stay home if you feel unwell and avoid contact with vulnerable individuals.

Final Thoughts

The Stratus COVID‑19 variant (XFG) is spreading quickly, but the good news is that it does not appear to cause more serious illness than other Omicron variants. A hoarse or raspy voice may help identify it early, but beyond that, the advice remains consistent: vaccinate, stay cautious, and seek care if needed.

Public health authorities are watching closely, and we all have a role in keeping our communities safe. With clear communication, simple precautions, and awareness of symptoms, we can stay ahead of this evolving situation.

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