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Geneva, July 14 – A newly identified Covid-19 variant, nicknamed ‘Stratus’ and scientifically designated as XFG, is spreading rapidly across several countries in the South-East Asia Region, prompting global health authorities to increase surveillance.
The World Health Organization (WHO) has officially classified XFG as a “variant under monitoring,” a designation that reflects its rapid transmission rate but does not indicate immediate concern. According to the WHO, while the variant has led to a noticeable uptick in hospitalisations, there is currently no evidence that XFG causes more severe illness or higher mortality than existing strains.
XFG is a recombinant variant, meaning it has emerged from a combination of two Omicron sub-lineages—LF.7 and LP.8.1.2. Its genetic makeup shares many similarities with its predecessors, but subtle differences are being closely studied by virologists and epidemiologists.
So far, the ‘Stratus’ variant has been detected in 38 countries, with the majority of cases concentrated in South-East Asia. Health officials note that the variant’s high transmissibility could soon make it a dominant global strain if current trends continue.
Symptoms and Clinical Presentation
The most commonly reported symptoms of the XFG variant include:
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Fever
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Chills
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Shortness of breath
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Sore throat
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Fatigue
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Headache
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Nausea and vomiting
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Muscle and body aches
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Loss of taste and smell
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Diarrhea
Interestingly, one emerging symptom—hoarseness or a raspy voice—has been reported by a significant number of patients. Experts suggest this may serve as a distinguishing feature of XFG compared to other Omicron sub-variants.
Public Health Response
Despite the rise in cases, WHO officials stress that the overall public health risk posed by XFG remains low at this time. Most infections have been mild, particularly among vaccinated individuals. However, health experts warn that people with underlying health conditions or compromised immune systems may face a higher risk of complications.
Governments across the affected regions have ramped up testing, contact tracing, and vaccination campaigns in response to the variant’s spread. Travelers are being advised to stay informed about local health regulations and to take standard precautions, including mask-wearing in crowded areas and frequent hand sanitization.
The WHO and national health agencies continue to monitor the situation closely, urging the public not to panic but to remain vigilant.
Disclaimer: This article is based on currently available information as of July 14, 2025. The situation regarding Covid-19 variants can change rapidly as new data emerges. Readers are advised to follow updates from official health authorities and consult medical professionals for personalized health guidance.
