Egg Farms Hit Hard as Bird Flu Affects Millions of Hens Posted on May 18, 2015 by Alejandro Cantagallo Yet again, another example of how they WAY in which we farm in the country exposes us to great risk. Mr. Dean, a son of the founder of one of the country’s biggest egg producers, the Center Fresh Group, must kill and dispose of about 5.5 million laying hens housed in 26 metal barns that rise among the rolling corn and soybean fields here. Deadly avian flu viruses have affected more than 33 million turkeys, chickens and ducks in more than a dozen states since December. The toll at Center Fresh farms alone accounts for nearly 17 percent of the nation’s poultry that has either been killed by bird flu or is being euthanized to prevent its spread.