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17h ago

Stratus Variant Overtakes 30% of UK Covid Cases as It Spreads Worldwide

WHO regards the recombinant XFG strain as a low-risk variant with sustained genomic monitoring

En Europa los investigadores determinaron que la variante Stratus de Covid se multiplica en forma rápida
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Subvariante JN.1 del coronavirus: características, síntomas y vacunas
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Overview

  • By early July, XFG made up over 30% of Covid-19 infections in the United Kingdom and 14% in the United States after ascending from 7.4% of global cases in April to 22.7% in May.
  • The World Health Organization designates XFG as a low-priority variant under monitoring and continues international genomic surveillance without imposing travel or trade restrictions.
  • The hybrid strain originated through recombination of LF.7 and LP.8.1.2 viruses when individuals were co-infected, boosting its transmission potential.
  • A distinct symptom of hoarseness and a raspy voice helps clinicians identify potential XFG infections early.
  • WHO guidance and preliminary studies indicate that existing JN.1-based vaccines and antivirals such as nirmatrelvir (Paxlovid) and remdesivir (Veklury) remain effective against severe disease.