COVID-19 variant JN.1 now leading cause of infection in US

A general view of the Centers for Disease Control and Prevention (CDC) headquarters in Atlanta, Georgia, September 30, 2014. REUTERS/Tami Chappell/File Photo/File Photo

The Omicron coronavirus subvariant JN.1 now makes up 44.2% of Covid-19 cases in the United States, according to the US Centers for Disease Control and Prevention. As of Friday, CDC data estimates indicate that the quickly spreading variant is now causing almost half of infections nationwide, when just days ago it was estimated that JN.1 caused only about 20% of infections. The CDC estimates that the prevalence of JN.1 has more than doubled in the US between late November and mid-December. According to the data, JN.1 makes up nearly 57% of the new Northeast Covid-19 cases. Globally, JN.1 has been reported in multiple countries and its prevalence has been rapidly increasing. This increase has caused The World Health Organization to name it a variant of interest because of its “rapidly increasing spread” but noted additional public health risk remains low.

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