Local health officials are warning about a second wave of the flu, with rising infection rates reported by the CDC.

COVID-19 infection, compared with influenza, is associated with increased myocarditis rates among adults in the United States.

The global prevalence of COVID-flu coinfection is 14%, with Asia and Europe having the highest rates of influenza A/B ...

Chen Cao, a researcher at the Chinese Center for Disease Control and Prevention's National Institute for Viral Disease ...

Low vaccination rates may be contributing to the spread of flu, but data suggests the number of cases so far this season is ...

Hospitals in China have been 'overwhelmed' by outbreak says WHO as NHS says people with respiratory symptoms should 'limit ...

But rates of types 31/33/45, 47, and 45 were lower in vaccinated women, which the authors said suggests that the vaccines ...