A Fresno County dairyman known for selling unpasteurized milk says he voluntarily recalled a batch of his product after one government agency detected avian flu.

The bird flu virus was detected in a retail sample of raw milk from Raw Farm, state health officials said.

Santa Clara County health officers pulled a random bottle off a store shelf at a grocery store, the Department of Public Health said Sunday.

Raw Farm issued a voluntary recall for one batch of cream top, whole raw milk with a Nov. 27 expiration date.

“Consumers should immediately return any remaining product to the store where it was purchased,” the state health department said in a statement.

Pasteurized milk remains safe to drink, the department said.

Positive Tests on Store Shelves, Negative Test at the Dairy

Mark McAfee, founder of Raw Farm, said he recalled the product after California Department of Public Health tested for avian flu. But earlier in the month, the California Department of Food & Agriculture tested milk from the source, not detecting avian flu.

“This is the first time in 25 years of doing what we do we’ve ever had two agencies of government opposing and in conflict with each other,” McAfee said.

McAfee said it’s CDFA that regulates and certifies milk from Raw Fresno. After the detection by Santa Clara County health, CDFA did another test, also finding it negative. He said his products receive regular biweekly testing.

He said the milk had been on store shelves since Nov. 10 and it was nearing the expiration date anyway.

McAfee said further testing will find if the flu detection found in a random bottle had a viable form of the disease.

“All the tests that they’ve gotten on our dairy operations as well as finished product are negative for HPAI virus or any fragment of it,” McAfee said.

Avian Flu Spreads, but Symptoms Mild

On Friday, health officials confirmed bird flu in a California child — the first reported case in a U.S. minor.

The child had mild symptoms, was treated with antiviral medication and is recovering, the Centers for Disease Control and Prevention said.

There have been at least 55 U.S. bird flu cases this year, including 29 in California, the CDC said. Most were farmworkers who tested positive with mild symptoms.

H5N1 bird flu has been spreading widely in the U.S. among wild birds, poultry and a number of other animals over the last few years.

It began spreading in U.S. dairy cattle in March. California has become the center of that outbreak, with 402 infected herds detected since August.

The Associated Press contributed to this article.