More poultry facilities in Michigan are being exposed to the bird flu virus, causing the outbreak to expand.

In Michigan, two more counties have reported infected bird flu flocks, as the outbreak continues to expand in the U.S. on Monday.

The Michigan State University Veterinary Diagnostic Laboratory discovered the presence of highly pathogenic avian influenza (HPAI) at two commercial poultry facilities in Ottawa County and at a backyard flock in Jackson County after an investigation by the Michigan Department of Agriculture and Rural Development (MDARD).

According to a statement from MDARD, the affected premises are currently under quarantine, and the birds will be "depopulated" to prevent disease spread.

Officials assert that the efforts made to maintain the safety and integrity of the commercial food supply are equally important.

"Protecting human health from the spread of HPAI is a top priority at MDARD," said Director Tim Boring. "On-farm biosecurity and increasing HPAI surveillance efforts are crucial strategies to prevent the virus from infecting domestic animals and potentially becoming a more concerning human threat."

The highly contagious virus known as HPAI, or bird flu, can spread from flock to flock through various means, including contact with infected animals, equipment, and the clothing and shoes of caretakers, as stated by MDARD.

"Despite the cold weather, HPAI persists in wild bird populations, allowing the virus to flourish and spread. It is crucial to prevent disease transmission by implementing biosecurity measures, such as keeping domestic animals away from wild birds and thoroughly cleaning and disinfecting equipment before reusing it."

MDARD is continuing to work diligently with local, state, and federal partners to quickly respond to reports of sick domestic animals and provide outreach to mitigate the spread of HPAI.

The risk of avian influenza to public health is low, as per the U.S. Centers for Disease Control and Prevention. No birds or bird products infected with HPAI will enter the commercial food chain.

Properly handling and cooking all poultry and eggs is essential.