COVID-19 cases are rising again in the U.S. as the holiday season approaches, potentially due to colder weather and indoor gatherings, says CDC. Doctors and scientists are monitoring a fast-spreading variant, JN.1. Test positivity rates and hospitalizations are also increasing. Meanwhile, COVID-19 shot uptake remains low, posing an additional challenge. Experts also point to high levels of virus detected in wastewater as an early infection warning and predict a potential wave in cases around New Year.
