Raw cheese made with milk from dairy cattle infected with bird flu can harbor infectious virus for months and may be a risk to public health, according to a new study from researchers at Cornell University that was funded by the US Food and Drug Administration.

New research shows it can harbor the infectious bird flu virus for months. "There is a risk of infection," lead study author Dr. Diego Diel, an associate professor at Cornell University, told CNN. "It obviously depends on the dose,

Raw milk can carry harmful bacteria and bird flu. Many people don’t know the risks. Experts say pasteurization makes milk safer.