The coronavirus subvariant JN.1 is now the fastest growing strain of the virus in the United States. The strain now constitutes about 20% of new Covid-19 infections, according to the US Centers for Disease Control and Prevention. In the Northeast, JN.1 has become the dominant variant.
Meanwhile, the CDC has issued an alert to clinicians about the need to increase immunizations for influenza, Covid-19, and respiratory syncytial virus, or RSV. The public health agency reported that in the past four weeks, hospitalizations across all age groups increased by 200% for influenza, 60% for RSV and 51% for Covid-19.