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First blood test to help diagnose Alzheimer’s goes on sale

To be diagnosed with Alzheimer's, people must have symptoms such as memory loss plus evidence of a buildup of a protein called beta-amyloid in the brain. The best way now to measure the protein is a costly PET brain scan that usually is not covered by insurance.

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Cancer survivors at higher risk of hospitalization or dying from flu

Survivors from a wide range of cancers are more likely than people in the general population to be hospitalized or die from seasonal influenza even several years after their cancer diagnosis, according to new data. Given that flu and COVID-19 are both epidemic respiratory viruses with broadly similar risk factors, the findings suggest that cancer survivors are also likely to be at raised risk of severe COVID-19 outcomes.

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