Human cells infected with the flu virus glow green under light from a fluorescence microscope at a laboratory. Credit: Ted S. Warren | AP

More Mainers are dying from the flu.

The CDC says the virus killed three people so far this season, and more people are being hospitalized.

[A century ago, about 1 percent of Bangor died from the flu in three months]

Their weekly report says 510 people have tested positive for the flu for the 2018-2019 season, and 53 people have been hospitalized.

Nationwide, federal health officials are reporting sharp increases in flu activity.

The dominating virus this flu season is H1N1.