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What is the main symptom of the new Stratus variant of COVID?

The main (distinguishing) symptom often cited for the Stratus (XFG) COVID variant is hoarseness, or a raspy/rough voice.

Other common symptoms such as a sore throat, dry cough, fatigue, and nasal congestion are also observed, but hoarseness is mentioned as something that can occur relatively early and is more frequently noted with this variant.

However, there is no reliable, official source (such as the WHO, ECDC, or peer-reviewed article) that confirms that hoarseness is statistically significantly more common with the Stratus variant (XFG) than with other variants.

Popular media and news reports report that hoarseness or a scratchy/raspy voice is mentioned as a prominent symptom of Stratus. The RIVM (Netherlands) does not mention any unique symptoms of XFG/Stratus in its variant overview.

The claim that hoarseness is the most important symptom stems primarily from non-scientific or trend reports, not from robust clinical data.

Source: https://www.unmc.edu/healthsecurity/transmission/2025/07/02/feeling-hoarse-you-might-have-the-new-stratus-covid-variant/

Author: Prof. Dr. Dirk Devroey - Latest update: 2025-09-29 - Copyright: Clinifacts 2026

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