The results should be interpreted in the context of twice as many hospitalizations for COVID than flu during the study period, the authors say.
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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After peaking in late 2022, global flu activity continues to decline, with greater proportion of the H1N1 and influenza B viruses detected.
The company, however, recently filed for bankruptcy, citing the prolonged FDA authorization process.
The Department of Energy, with "low confidence," says SARS-CoV-2 may have come from a lab, and a controversial doctors groups touts ivermectin for the flu and RSV.
US influenza activity is still low, flu vaccine protection is moderate, and WHO advisers only tweak the makeup of next year's flu vaccine.
Two recent papers claim there are no differences between surgical masks and respirators for preventing the spread of respiratory diseases like COVID-19 and flu, but the articles are deeply flawed.
The percentage of outpatient visits for flulike illness remained just above the national baseline.
The CDC points out that flu vaccine uptake in children this season is 6 percentage points lower than before the pandemic.
In another COVID development, the FDA pulled its EUA for Evusheld, the last available monoclonal antibody treatment, due to weak activity against the newer circulating subvariants.
The state will launch a pilot program to test wastewater for flu, hepatitis A, norovirus, and antimicrobial-resistance genes.
In North America, flu levels are now at or below levels typically seen at this time of the year.