The better the economy, the more people working. The more people working, the more flu.
With the unemployment rate at 50 year lows, more people are out in the world and that means more opportunity to spread infectious disease.
In December, the CDC reported widespread flu in 16 states: Alabama, California, Connecticut, Georgia, Indiana, Louisiana, Massachusetts, Mississippi, Nevada, New Mexico, New York, Pennsylvania, South Carolina, Tennessee, Texas, and Virginia.
Workers, especially in those occupations with high public contact, should be aware that at the first symptoms of flu, they are contagious.
The way to stop the flu: Stay home when sick, don't share.
