Spanish
A new subvariant of COVID-19 is generating concern in the scientific community. This is XFG, also known as Stratus or, popularly, “Frankenstein”, due to its recombinant origin: it arises from the fusion of two previous strains of SARS-CoV-2, specifically LF.7 and LP.8.1.2.
The Oswaldo Cruz Institute confirmed the circulation of this new variant in several regions of southern Brazil, including Rio de Janeiro, Sao Paulo, Ceara and Santa Catarina. The World Health Organization (WHO) is already closely monitoring its evolution, after observing an accelerated increase in cases in Europe and South America.
In Spain, for example, COVID-19 infections have tripled in recent weeks, in the middle of the summer season. Experts attribute this rise to the rapid advance of Stratus, added to the relaxation of measures and the low perception of risk in the population.
Although no confirmed cases have yet been reported in Argentina, specialists warn that the low level of local genomic sequencing makes it difficult to detect new strains. In fact, the latest National Epidemiological Bulletin (BEN) with genomic data was published almost two months ago.
Among the main symptoms generated by the new variant are the classic respiratory ailments, but now a clinical novelty is also reported: aphonia or total loss of voice, which differentiates it from previous subvariants.
Despite its contagiousness, experts emphasize that the strain does not appear to be more virulent. The immunity acquired through vaccination and previous infections, added to the lower aggressiveness of the virus, keeps serious cases and hospitalizations at bay.
However, the medical community insists on the need for vigilance and updating vaccination schedules as a preventive barrier. It is also recommended to maintain good hygiene practices and avoid crowds in enclosed spaces.
"The virus continues to mutate to survive. The challenge is for us not to let our guard down," warned the WHO.
