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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Scientists from Singapore and Australia found that the revised World Health Organization (WHO) case definition for influenza-like illness (ILI) bested case definitions from the US Centers for Disease Control and Prevention (CDC) and the European Centre for Disease Protection and Control (ECDC), according to their report today in Eurosurveillance.
Cases of the new canine H3N2 virus centered around Chicago have now been detected in as many as 13 states.
Iowa agriculture officials today reported four more highly pathogenic H5 avian influenza outbreaks, with testing under way to confirm that they are part of a string of H5N2 outbreaks that has now affected up to 60 of the state's farms.
A new case of H7N9 avian flu has been reported from China, this one in a 3-year-old boy from Huaibei City, according to machine-translated notices from provincial health officials posted yesterday on FluTrackers, an infectious disease message board.
The child, who is reportedly in stable condition with mild symptoms, had contact with live poultry before his Apr 27 disease onset. He received outpatient treatment.
Flu activity continues to hang on in a few northeastern states, but most markers declined further last week, except for the hospitalization rate, the US Centers for Disease Control and Prevention (CDC) said today.
Minnesota, the epicenter of the H5N2 avian influenza battle, today reported 11 more outbreaks on poultry farms, including 8 confirmed detections and 3 presumptive positives, raising the state's total to 67.
Two straight weeks of low influenza activity signal that the long 2014-15 flu season, marked by its heavy impact on seniors and poor vaccine performance, is drawing to an end, the Centers for Disease Control and Prevention (CDC) said in a short review of the season yesterday.
Influenza activity continues to drop in the United States even as rates of hospitalization for flu continue to climb, the Centers for Disease Control and Prevention (CDC) said today in its weekly update. The CDC also reported three flu-related deaths in kids.
School closures in Michigan during the fall wave of the 2009 H1N1 flu pandemic had little impact on disease spread, according to a retrospective study by a team based at the University of Michigan. The group published its findings yesterday in Clinical Infectious Diseases.
The US Centers for Disease Control and Prevention (CDC) said yesterday that GlaxoSmithKline (GSK) has notified federal officials that it has recalled the remaining doses of its 2014-15 Flulaval quadrivalent thimerosal-free prefilled syringes, because of a reduced potency issue.
