The JN.1 COVID-19 Variant: What We Know So Far
By Gabriel Rivera
Published January 24, 2024
The Centers for Disease Control and Prevention (CDC) has reported a significant rise in the JN.1 variant, estimating it to account for approximately 85.7% of COVID-19 cases across the United States. This variant has been closely monitored for its impact on disease severity and transmission rates.
Assessment of Severity
Early data from hospitals, as shared by Dr. Eduardo Azziz-Baumgartner of the CDC, indicates that the JN.1 variant may not be leading to more severe disease. While the agency is awaiting further data to provide a comprehensive assessment, there are initial indications that the symptoms associated with JN.1 may not be more severe compared to previous waves of the virus.
CDC's Ongoing Evaluation
Dr. Azziz-Baumgartner mentioned that the CDC anticipates releasing more detailed information about the severity of the JN.1 variant in the coming weeks as additional data on the virus becomes available. The CDC has emphasized the importance of considering the unique impact of the virus on individuals, acknowledging that its effects can vary widely.
WHO's Assessment
Contrary to the World Health Organization's (WHO) decision to designate JN.1 as a variant of interest, the CDC and other federal health agencies have not classified it as such. The WHO has stated that there is currently no reported evidence linking JN.1 or its other variants to increased disease severity.
Impact on Hospitalizations
Despite the rise of the JN.1 variant, the CDC's disease forecasters have noted a slowing of respiratory virus trends and have not deemed the spread of JN.1 as warranting an elevated assessment of COVID-19's threat this winter. While COVID-19 hospitalizations continue to surpass those of influenza on a national level, the rates have not exceeded previous record highs.
Hospital Strain and Precautionary Measures
Certain regions, particularly in New England, have reported strains on hospital capacities. Massachusetts General Hospital and other facilities in the state have taken measures to address overcrowding, highlighting the ongoing impact of COVID-19 on healthcare systems.
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