The Centers for Disease Control (CDC) is admitting they have “concern” that the bird flu which killed 48 million birds this year could jump to humans.

While the virus has not infected any humans thus far, Dr. Michael Jhung, head of the CDC’s Influenza Division, says they are watching to see if the virus begins to mutate.

“These are the first of these types of viruses that we’re seeing,” Dr. Jhung told CNBC.  “Because [the viruses are] new, we’re a little concerned because we don’t know how dangerous they could be.”

The CDC says the risk to the public is low but issued an advisory that anyone near sick or dead birds wear coveralls, face masks and eye protection.

“This bird flu outbreak in the United States is not the start of a pandemic,” Dr. Jhung said.  However, the CDC is “preparing for human cases of infection with this bird flu virus, even though there have been none.”

“We don’t want to see any, but we are getting ready in case there are cases of human infection,” he added.

Officials with the United States Department of Agriculture (USDA) say they believe the bird flu that struck this year has been eradicated but are preparing for another wave of the virus this fall.

The deaths of birds and their impact on domestic egg production has caused a massive spike in egg prices.  The average price for a dozen eggs has jumped 135% this year because of the shortage in eggs.  Some experts say eggs could be as much as $6 a dozen before the market begins to recover.