Secondary bacterial pneumonia rates were significantly higher in the RSV group.
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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Federal officials also touch on the hand-off to the Trump administration, as tests confirm avian flu in several more poultry flocks and at a Chicago zoo.
Hospitalization rates are on an upward trend for all 3 viruses, with the highest levels for flu.
Seasonal flu is currently the most common virus detected in China's illness surge, which is at expected levels for this time of year.
Flu hospitalizations are rising in all age-groups, with high or very high levels in 42 states.
Further tests found seasonal flu, rhinovirus, COVID, and other common respiratory viruses, alongside malaria and complications from malnutrition.
RSV activity remains high, with pediatric hospitalizations increasing across most of the country.
The WHO says it is monitoring some JN.1-related variants, still in low proportions, that might have more immune escape than XEC.
The South and West have the highest flu levels, while COVID levels are highest in the Midwest.
More than a third of infants 6 months and younger were not treated with antivirals when hospitalized for the flu.
The report urges citizens and healthcare workers not yet vaccinated against COVID-19 or seasonal flu to do so as soon as possible before next week's holidays.