CDC weighs in on JN.1 COVID-19 variant developments By iopac on October 31, 2023 The estimated percentage of JN.1 viruses is very small—about 0.1%. Published in COVID-19 iopac More from COVID-19More posts in COVID-19 »Study: US children at times received ineffective COVID-19 treatmentsNIH announces long-COVID trials to examine treatments for sleep, exercise disruptionsFDA postpones advisory committee meeting on next COVID vaccinesLong-COVID symptoms in kids appear to differ by age