CDC officials say the rate of outpatient visits involving flu-like illnesses has reached or exceeded the national baseline for a month, and high activity was observed in 12 states during the week ending Nov. 30, indicating the fastest start of flu season since 2003-04. The 2019-20 flu season also has a 40% likelihood of reaching its peak this month, and six pediatric deaths have been documented so far, according to the CDC.