With increasing time since diagnosis, only the severe infections continued to cause symptoms.
The loss of activity is equivalent to 15% of the US population becoming completely immobile for 1 day.
Adult COVID-19 patients also infected with the flu are 4 times more likely to need mechanical ventilation and 2.4 times more likely to die.
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Signs are encouraging, though activity sometimes rises again after the holiday period.
The greatest reductions occurred when the breaks coincided with elevated local flu activity.
Some downward trends might reflect changes in holiday-related health seeking behaviors.
Influenza A currently makes up the majority of global detections, with H3N2 most common among subtyped samples.
Though COVID wastewater and test positivity are higher than last year at this time, medical encounters are trending lower.
Relative to flu patients, those infected with Omicron BA.5 had higher rates of vasopressor use, renal replacement therapy, and in-hospital death.
Flu and COVID indicators continued upward trends, with different regions reporting the most intensive activity.
Emergency department visits for COVID were highest in infants and older adults.
Levels for three viruses are elevated or rising, as the CDC warned of further impacts and urged stepped-up vaccination.
The COVID-19 group had a higher risk of hospital readmission than the seasonal flu cohort.
