A newly emerged variant of the Covid virus is rapidly spreading, distinguished by a unique symptom. Concern has been mounting regarding the transmission of this novel strain, known as ‘Stratus,’ which encompasses two subtypes, XFG and XFG.3. Initially identified in January, the World Health Organization (WHO) designated XFG for close monitoring by June due to its escalating prevalence worldwide.
As of September 3, the UK Health Security Agency reported a 7.1% surge in COVID-19 cases throughout England compared to the preceding week, although the impact of the XFG strain remains uncertain. Health authorities in Ireland documented 425 fresh infections in the first week of September, attributing the majority to the XFG variant.
Typically, Covid symptoms mimic those of common respiratory illnesses like influenza, including fever, cough, sneezing, and a runny nose, with variations in severity among individuals. Notably, the primary distinguishing feature of Stratus is an initial hoarse or raspy voice, preceding traditional Covid indicators, potentially leading to oversight due to its atypical nature.
Medical professionals have observed a range of additional symptoms associated with this variant, such as nasal congestion, sore throat, gastrointestinal problems, and fatigue. Dr. Nye highlighted that individuals with this version commonly experience pronounced throat discomfort and hoarseness, contrasting with the more prevalent symptoms like cough, fever, and body aches.
Moreover, experts cautioned that this variant is more likely to cause illness, potentially evading previous immunity, diminishing the efficacy of prior vaccines. Dr. Peter Chin-Hong, an infectious disease specialist at the University of California, San Francisco, emphasized that Stratus exhibits a broader spectrum of symptoms compared to earlier iterations, with a notable prevalence of sore throats, particularly among older unvaccinated individuals.
Anticipating heightened transmissibility, especially with the return of children to school, experts underscored the importance of ongoing vaccination efforts to mitigate the impact of this evolving coronavirus strain.