Experts Say Virus, Not Flu, Causing Illnesses

Infectious disease specialist Dr. Emily Landon at UChicago Medicine says the current wave of sickness is likely caused by rhino enterovirus, not influenza. She noted that the virus is spreading rapidly and is causing symptoms similar to the flu.

Landon explained that rhino enterovirus and influenza are different viruses, though they can produce similar early symptoms. She emphasized that while some cases may involve fever and cough, most are more like a common cold with runny nose and fatigue.

Federal experts reported that flu season began earlier than usual this year, with higher-than-normal cases for October. However, overall flu activity remains low compared to typical seasonal levels.

According to experts, flu season typically peaks in January in Chicago, and while this year's season may start earlier, it is too early to conclude that flu is the main health threat.

Northwestern Medicine says flu and COVID cases are 'slightly higher than usual' for this time of year. Rush University Medical Center confirmed that flu season began earlier than expected.

Landon says there are some 'waning cases from a late summer bump in COVID,' but that numbers are decreasing right now. She also emphasized the importance of flu vaccination, which takes about two, weeks to provide full protection.