Health officials in Marin County, California, are warning against consuming raw milk after a child there was suspected of contracting bird flu after consuming raw milk.

However, according to an update on Wednesday, the child appears to have tested negative for bird flu, a source familiar with the investigation told ABC News.

“The child has recovered and no other family members have become ill, indicating there is no human-to-human transmission,” Marin County Public Health officials said in their initial statement.

Health authorities have been warning against consuming raw milk for a long time, even before the ongoing outbreak of bird flu in farm animals. Raw milk is not pasteurized – a process proven to kill bacteria and viruses, including bird flu. The Centers for Disease Control and Prevention (CDC) advises that consuming raw milk can cause gastrointestinal distress and, in rare cases, more serious illnesses such as Guillain-Barre syndrome, which can lead to paralysis.

California is grappling with an ongoing bird flu outbreak. So far, 32 human cases have been confirmed in the state, all but one of which authorities say were due to contact with sick cattle.

California health officials announced last week that they had initiated “a comprehensive, voluntary recall” of raw milk and cream products from supplier Raw Farm, LLC after it tested positive for the condition “at both retail and dairy storage and bottling facilities.” Virus had been tested.

It’s not yet clear whether humans can become infected with bird flu by consuming raw milk, but studies on cats and mice suggest that the animals can become ill by consuming contaminated raw milk.

There have been at least 60 human cases of bird flu in the U.S. so far this year – 58 of which have been confirmed by the CDC and two additional cases reported by health officials in Arizona. Almost all U.S. cases have been reported in farm workers exposed to infected livestock.

Editor’s note: This story has been updated to reflect subsequent information that the child in question tested negative for avian influenza and to include recently reported avian influenza cases in Arizona.