*Click Here to see the most up-to-date Highly Pathogenic Avian Influenza cases in Commercial/Backyard Flocks and Wild Birds

*Click Here to see most up-to-date Infographic of Poultry/Poultry Products From HPAI Control Areas Requiring Permits to Enter California

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October 4, 2022: Highly Pathogenic Avian Influenza (HPAI) Detected in Stanislaus County, Monterey County, and Del Norte County

The California Department of Food and Agriculture (CDFA) with the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have detected a case of Highly Pathogenic Avian Influenza (HPAI) in a commercial flock in Stanislaus County, a commercial flock in Monterey County, and a backyard flock in Del Norte County, California. As of today, HPAI had previously been confirmed in domesticated flocks in the following counties: Butte, Calaveras, Contra Costa, El Dorado, Fresno, Sacramento, and Tuolumne. To protect other California flocks, the infected locations have been quarantined and the birds are euthanized to prevent further disease spread.

In addition to domestic flocks, HPAI in wild birds have been detected in the following 22 counties: Alameda, Butte, Colusa, El Dorado, Fresno, Glenn, Mendocino, Monterey, Napa, Placer, Plumas, Sacramento, San Francisco, San Mateo, Santa Clara, Santa Cruz, Siskiyou, Solano, Sonoma, Stanislaus, Trinity, Yolo. The viral spread is promoted by wild birds, especially in wild waterfowl such as ducks and geese, but many other wild bird species can also be a source of spread. Poultry owners can protect their flocks by increasing their biosecurity practices.

Avian influenza is a highly contagious and often fatal disease in birds. The disease is spread through movement of infected or exposed birds, direct or indirect contact with infected wild and domestic birds or contact with virus on fomites (surfaces) such as hands, shoes, clothing, or feet and fur of rodents and other animals.

Clinical signs of HPAI include sudden death, trouble breathing, clear runny discharge (from nose, mouth, and eyes), lethargy, decreased food and water intake, swelling (eyes, head, wattles, or combs), discolored or bruised comb, wattles, or legs, stumbling/falling or twisted neck. For more information and updates, please visit our CDFA Avian Health Program webpage. Poultry owners with flocks that have experienced any unusual/suspicious illness or deaths should call our CDFA Sick Bird Hotline at 866-922-BIRD (2473).

Please report any unusual or suspicious dead wild birds to the California Department of Fish and Wildlife online at www.wildlife.ca.gov/Conservation/Laboratories/Wildlife-Health/Monitoring/Mortality-Report. If you have questions about wildlife rehabilitation, please contact California Department of Fish and Wildlife directly. Contact information is available here: Wildlife Health Lab - Avian Investigations (ca.gov)

For public inquiries regarding highly pathogenic avian influenza in California, please call: 916-217-7517 or send an e-mail to cdfa.HPAIinfo@cdfa.ca.gov. For media inquiries, please call 916-654-0462 or send an e-mail to: OfficeOfPublicAffairs@cdfa.ca.gov.

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September 29, 2022: Highly Pathogenic Avian Influenza (HPAI) Detected in a Backyard Flock in Calaveras County

The California Department of Food and Agriculture (CDFA) with the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have detected a case of Highly Pathogenic Avian Influenza (HPAI) in a backyard flock in Calaveras County, California. As of today, HPAI had previously been confirmed in domesticated flocks in the following counties: Butte, Contra Costa, El Dorado, Fresno, Sacramento, and Tuolumne. To protect other California flocks, the infected locations are quarantined and the birds are euthanized to prevent further disease spread.

In addition to domestic flocks, HPAI was previously detected in wild birds in the following nineteen counties: Alameda, Butte, Colusa, Fresno, Glenn, Mendocino, Napa, Placer, Plumas, Sacramento, San Francisco, Santa Clara, Santa Cruz, Siskiyou, Solano, Sonoma, Stanislaus, Trinity, and Yolo. The viral spread is promoted by wild birds, especially in wild waterfowl such as ducks and geese, but many other wild bird species can also be a source of spread. Poultry owners can protect their flocks by increasing their biosecurity practices.

Avian influenza is a highly contagious and often fatal disease in birds. The disease is spread through movement of infected or exposed birds, direct or indirect contact with infected wild and domestic birds or contact with virus on fomites (surfaces) such as hands, shoes, clothing, or feet and fur of rodents and other animals.

Clinical signs of HPAI include sudden death, trouble breathing, clear runny discharge (from nose, mouth, and eyes), lethargy, decreased food and water intake, swelling (eyes, head, wattles, or combs), discolored or bruised comb, wattles, or legs, stumbling/falling or twisted neck. For more information and updates, please visit our CDFA Avian Health Program webpage. Poultry owners with flocks that have experienced any unusual/suspicious illness or deaths should call our CDFA Sick Bird Hotline at 866-922-BIRD (2473).

Please report any unusual or suspicious dead wild birds to the California Department of Fish and Wildlife online at www.wildlife.ca.gov/Conservation/Laboratories/Wildlife-Health/Monitoring/Mortality-Report. If you have questions about wildlife rehabilitation, please contact California Department of Fish and Wildlife directly. Contact information is available here: Wildlife Health Lab - Avian Investigations (ca.gov)

For public inquiries regarding highly pathogenic avian influenza in California, please call: 916-217-7517 or send an e-mail to cdfa.HPAIinfo@cdfa.ca.gov. For media inquiries, please call 916-654-0462 or send an e-mail to: OfficeOfPublicAffairs@cdfa.ca.gov.

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September 23, 2022: Highly Pathogenic Avian Influenza (HPAI) Detected in Wild Birds in Additional Counties

The California Department of Food and Agriculture (CDFA) with the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have confirmed cases of Highly Pathogenic Avian Influenza (HPAI) in wild birds in three additional counties: Fresno, San Francisco, and Santa Cruz. HPAI was previously detected in wild birds in the following sixteen counties: Alameda, Butte, Colusa, Glenn, Mendocino, Napa, Placer, Plumas, Sacramento, Santa Clara, Siskiyou, Solano, Sonoma, Stanislaus, Trinity, and Yolo.

As of today, HPAI had previously been confirmed in domesticated flocks in the following six (6) California counties: Butte, Contra Costa, El Dorado, Fresno, Sacramento, and Tuolumne. To protect other California flocks, the infected locations are currently under quarantine, and the birds are euthanized to prevent further disease spread.

The viral spread is promoted by wild birds, especially in wild waterfowl such as ducks and geese, but many other wild bird species can also be a source of spread. It is important to note that HPAI is widespread in Northern California and may also be present in other counties that are not listed (due to having no lab submissions from those counties). Poultry owners can protect their flocks by increasing their biosecurity practices.

Avian influenza is a highly contagious and often fatal disease in birds. The disease is spread through movement of infected or exposed birds, direct or indirect contact with infected wild and domestic birds or contact with virus on fomites (surfaces) such as hands, shoes, clothing, or feet and fur of rodents and other animals.

Clinical signs of HPAI include sudden death, trouble breathing, clear runny discharge (from nose, mouth, and eyes), lethargy, decreased food and water intake, swelling (eyes, head, wattles, or combs), discolored or bruised comb, wattles, or legs, stumbling/falling or twisted neck. For more information and updates, please visit our CDFA Avian Health Program webpage. Poultry owners with flocks that have experienced any unusual/suspicious illness or deaths should call our CDFA Sick Bird Hotline at 866-922-BIRD (2473).

Please report any unusual or suspicious dead wild birds to the California Department of Fish and Wildlife online at www.wildlife.ca.gov/Conservation/Laboratories/Wildlife-Health/Monitoring/Mortality-Report. If you have questions about wildlife rehabilitation, please contact California Department of Fish and Wildlife directly. Contact information is available here: Wildlife Health Lab - Avian Investigations (ca.gov)

For public inquiries regarding highly pathogenic avian influenza in California, please call: 916-217-7517 or send an e-mail to cdfa.HPAIinfo@cdfa.ca.gov. For media inquiries, please call 916-654-0462 or send an e-mail to: OfficeOfPublicAffairs@cdfa.ca.gov.

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September 13, 2022: Highly Pathogenic Avian Influenza (HPAI) Detected in a Backyard Flock in El Dorado County

The California Department of Food and Agriculture (CDFA) with the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have confirmed a case of Highly Pathogenic Avian Influenza (HPAI) in a backyard flock in El Dorado County, California. As of today, HPAI has been confirmed in domesticated flocks in the following 6 (six) California counties: Butte, Contra Costa, El Dorado, Fresno, Sacramento, and Tuolumne. To protect other California flocks, the infected locations are currently under quarantine, and the birds are euthanized to prevent further disease spread.

In addition to domestic flocks, HPAI was detected in wild birds in the following sixteen counties: Alameda, Butte, Colusa, Glenn, Mendocino, Napa, Placer, Plumas, Sacramento, Santa Clara, Siskiyou, Solano, Sonoma, Stanislaus, Trinity, and Yolo. The viral spread is promoted by wild birds, especially in wild waterfowl such as ducks and geese, but many other wild bird species can also be a source of spread. Poultry owners can protect their flocks by increasing their biosecurity practices.

Avian influenza is a highly contagious and often fatal disease in birds. The disease is spread through movement of infected or exposed birds, direct or indirect contact with infected wild and domestic birds or contact with virus on fomites (surfaces) such as hands, shoes, clothing, or feet and fur of rodents and other animals.

Clinical signs of HPAI include sudden death, trouble breathing, clear runny discharge (from nose, mouth, and eyes), lethargy, decreased food and water intake, swelling (eyes, head, wattles, or combs), discolored or bruised comb, wattles, or legs, stumbling/falling or twisted neck. For more information and updates, please visit our CDFA Avian Health Program webpage. Poultry owners with flocks that have experienced any unusual/suspicious illness or deaths should call our CDFA Sick Bird Hotline at 866-922-BIRD (2473).

Please report any unusual or suspicious dead wild birds to the California Department of Fish and Wildlife online at www.wildlife.ca.gov/Conservation/Laboratories/Wildlife-Health/Monitoring/Mortality-Report. If you have questions about wildlife rehabilitation, please contact California Department of Fish and Wildlife directly. Contact information is available here: Wildlife Health Lab - Avian Investigations (ca.gov)

For public inquiries regarding highly pathogenic avian influenza in California, please call: 916-217-7517 or send an e-mail to cdfa.HPAIinfo@cdfa.ca.gov. For media inquiries, please call 916-654-0462 or send an e-mail to: OfficeOfPublicAffairs@cdfa.ca.gov.

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August 30, 2022: Highly Pathogenic Avian Influenza (HPAI) Detected in a Commercial Flock in Sacramento County

The California Department of Food and Agriculture (CDFA) with the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have detected a case of Highly Pathogenic Avian Influenza (HPAI) in a commercial turkey flock in Sacramento County, California. This is in addition to the previously confirmed backyard flock that CDFA announced on August 11, 2022. As of today, HPAI has been confirmed in domesticated flocks in the following counties: Butte, Contra Costa, Fresno, Sacramento, and Tuolumne. To protect other California flocks, the infected locations are currently under quarantine, and the birds are euthanized to prevent further disease spread.
 
In addition to domestic flocks, HPAI was detected in wild birds in the following fourteen counties: Butte, Colusa, Glenn, Mendocino, Napa, Placer, Plumas, Sacramento, Santa Clara, Siskiyou, Solano, Sonoma, Stanislaus, and Yolo. The viral spread is promoted by wild birds, especially in wild waterfowl such as ducks and geese, but many other wild bird species can also be a source of spread. Poultry owners can protect their flocks by increasing their biosecurity practices.
 
Avian influenza is a highly contagious and often fatal disease in birds. The disease is spread through movement of infected or exposed birds, direct or indirect contact with infected wild and domestic birds or contact with virus on fomites (surfaces) such as hands, shoes, clothing, or feet and fur of rodents and other animals.
 
Clinical signs of HPAI include sudden death, trouble breathing, clear runny discharge (from nose, mouth, and eyes), lethargy, decreased food and water intake, swelling (eyes, head, wattles, or combs), discolored or bruised comb, wattles, or legs, stumbling/falling or twisted neck. For more information and updates, please visit our CDFA Avian Health Program webpage. Poultry owners with flocks that have experienced any unusual/suspicious illness or deaths should call our CDFA Sick Bird Hotline at 866-922-BIRD (2473).
 
Please report any unusual or suspicious dead wild birds to the California Department of Fish and Wildlife online at www.wildlife.ca.gov/Conservation/Laboratories/Wildlife-Health/Monitoring/Mortality-Report. If you have questions about wildlife rehabilitation, please contact California Department of Fish and Wildlife directly. Contact information is available here: Wildlife Health Lab - Avian Investigations (ca.gov)

For public inquiries regarding highly pathogenic avian influenza in California, please call: 916-217-7517 or send an e-mail to cdfa.HPAIinfo@cdfa.ca.gov. For media inquiries, please call 916-654-0462 or send an e-mail to: OfficeOfPublicAffairs@cdfa.ca.gov.

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August 24, 2022: Highly Pathogenic Avian Influenza (HPAI) Detected in Tuolumne County

The California Department of Food and Agriculture (CDFA) with the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have detected a case of Highly Pathogenic Avian Influenza (HPAI) in a California commercial flock in Tuolumne County. HPAI has also been detected in domesticated flocks in the following counties: Butte, Contra Costa, Fresno, and Sacramento. To protect other California flocks, the infected locations are currently under quarantine, and the birds have been euthanized to prevent further disease spread.
 
In addition to domestic flocks, HPAI was detected in wild birds in the following thirteen counties: Butte, Colusa, Glenn, Mendocino, Placer, Plumas, Sacramento, Santa Clara, Siskiyou, Solano, Sonoma, Stanislaus, and Yolo. The viral spread is promoted by wild birds especially, in wild waterfowl such as ducks and geese, but many other wild bird species can also be a source of spread. Poultry owners can protect their flocks by increasing their biosecurity practices.
 
Avian influenza is a highly contagious and often fatal disease in birds. The viral spread is promoted by wild birds, especially in wild waterfowl such as ducks and geese, but many other wild bird species can be a source of spread as well. The disease is also spread through movement of infected or exposed birds, direct or indirect contact with infected wild and domestic birds or contact with virus on fomites (surfaces) such as hands, shoes, clothing, or feet and fur of rodents and other animals.
 
Clinical signs of HPAI include sudden death, trouble breathing, clear runny discharge (from nose, mouth, and eyes), lethargy, decreased food and water intake, swelling (eyes, head, wattles, or combs), discolored or bruised comb, wattles, or legs, stumbling/falling or twisted neck. For more information  and updates, please visit our CDFA Avian Health Program webpage. Poultry owners with flocks that have experienced any unusual/suspicious illness or deaths should call our CDFA Sick Bird Hotline at 866-922- BIRD (2473).
 
Please report any unusual or suspicious dead wild birds to the California Department of Fish and Wildlife online at www.wildlife.ca.gov/Conservation/Laboratories/Wildlife-Health/Monitoring/Mortality-Report. If you have questions about wildlife rehabilitation, please contact California Department of Fish and Wildlife directly.  Contact information is available here: Wildlife Health Lab - Avian Investigations (ca.gov)
 
For public inquiries regarding highly  pathogenic avian influenza in California, please call: 916-217-7517 or send an e-mail to cdfa.HPAIinfo@cdfa.ca.gov. For media inquiries, please call 916-654-0462 or send an e-mail to: OfficeOfPublicAffairs@cdfa.ca.gov.
 
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August 22, 2022: Highly Pathogenic Avian Influenza (Bird Flu) Detected in Fresno and Contra Costa Counties

The California Department of Food and Agriculture (CDFA) with the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have detected a case of Highly Pathogenic Avian Influenza (HPAI) in a California commercial flock in Fresno County.  While this virus has impacted commercial flocks in most other states in the U.S. since last January, this is the first commercial flock to be found infected in California. HPAI has also been recently detected in a backyard flock in Contra Costa County. To protect other California flocks, the infected locations are currently under quarantine, and the birds have been euthanized to prevent further disease spread.  


As of August 22, 2022, HPAI has been detected in backyard flocks in Sacramento County, Butte County, and Contra Costa County and in a commercial flock in Fresno County, California. In addition to domestic flocks, HPAI was detected in wild birds in the following twelve counties: Butte, Colusa, Glenn, Mendocino, Placer, Plumas, Sacramento, Santa Clara, Siskiyou, Solano, Sonoma, and Stanislaus. The viral spread is promoted by wild birds especially, in wild waterfowl such as ducks and geese, but many other wild bird species can also be a source of spread. Poultry owners can protect their flocks by increasing their biosecurity practices.   


According to the Centers for Disease Control and Prevention, the current detections of HPAI in birds does not present a public health concern and the public health risk remains low. While not recommended, if you handle sick or dead wild birds, use disposable gloves (or a plastic bag turned inside out) to place the body in a garbage bag. No birds or bird products infected with HPAI will enter the food chain. As a reminder, it is recommended that all poultry and eggs are properly handled and cooked to an internal temperature of 165 ˚F as a food safety precaution. Please contact your local public health department for further information on preventing avian influenza in people. 


Avian influenza is a highly contagious and often fatal disease in birds. We are urging poultry owners to increase their biosecurity practices. Biosecurity is the measures taken to prevent disease from entering and/or leaving a premises or location. Although this outbreak of avian influenza is primarily being spread by wild birds, the virus can be further spread between domestic flocks through contact with infected poultry, from contaminated equipment, and even the shoes and clothing worn by poultry caretakers.

Here are some biosecurity recommendations to help protect your flock:  

 

Report any unusual or suspicious numbers of sick or dead domestic birds immediately to the CDFA Sick Bird Hotline at (866) 922-2473. Monitor your birds for the following symptoms:  

 
Report any unusual or suspicious dead wild birds to the California Department of Fish and Wildlife online at www.wildlife.ca.gov/Conservation/Laboratories/Wildlife-Health/Monitoring/Mortality-Report. If you have questions about wildlife rehabilitation, please contact California Department of Fish and Wildlife directly.  Contact information is available here: Wildlife Health Lab - Avian Investigations (ca.gov)  

For public inquiries regarding highly pathogenic avian influenza in California, please call: 916-217-7517. For media inquiries, please call 916-654-0462 or send an e-mail to: OfficeOfPublicAffairs@cdfa.ca.gov.

 

Stay Informed  

For the latest updates in California domestic poultry, follow us on social media and subscribe. You can find us on Facebook at Animal Health Branch – CDFA and on Instagram at AnimalHealthBranch_CDFA.  

For more information and updates on wild bird detections in California, visit the California Department of Fish and Wildlife website.   

 

More information on avian influenza and how to protect flocks through biosecurity measures can be found on the U.S. Department of Agriculture’s website. 

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August 11, 2022: Highly Pathogenic Avian Influenza (Bird Flu) Confirmed in California Backyard Flock

Sacramento, CA– Following an investigation by the California Department of Food and Agriculture (CDFA), the U.S. Department of Agriculture’s National Veterinary Services Laboratories (NVSL) has confirmed highly pathogenic avian influenza (HPAI) in a backyard flock in Sacramento County. In addition to this confirmation, HPAI has also been detected in wild birds in the following twelve counties: Butte, Colusa, Glenn, Mendocino, Placer, Plumas, Sacramento, Santa Clara, Siskiyou, Solano, Sonoma, and Stanislaus. The viral spread is promoted by wild birds especially in wild waterfowl such as ducks and geese, but many other wild bird species can also be a source of spread. Poultry owners can protect their flocks by increasing their biosecurity practices.

To protect other flocks in California, the confirmed infected location is currently under quarantine, and the birds have been euthanized to prevent further disease spread.

According to the Centers for Disease Control and Prevention, the current detections of HPAI in birds does not present a public health concern and the public health risk remains low. While not recommended, if you handle sick or dead wild birds, use gloves (or a plastic bag turned inside out) to place the body in a garbage bag. Please contact your local public health department for further information on preventing avian influenza in people.

Avian influenza is a highly contagious and often fatal disease in birds. We are urging poultry owners to increase their biosecurity practices. Biosecurity is the measures taken to prevent disease from entering and/or leaving a premises or location. Although this outbreak of avian influenza is primarily being spread by wild birds, the virus can be further spread between domestic flocks through contact with infected poultry, from contaminated equipment, and even the shoes and clothing worn by poultry caretakers. Here are some biosecurity recommendations to help protect your flock:

Report any unusual or suspicious numbers of sick or dead domestic birds immediately to the CDFA Sick Bird Hotline at (866) 922-2473. Monitor your birds for the following symptoms:

Report any unusual or suspicious dead wild birds to the California Department of Fish and Wildlife online at www.wildlife.ca.gov/Conservation/Laboratories/Wildlife-Health/Monitoring/Mortality-Report. If you have questions about wildlife rehabilitation, please contact California Department of Fish and Wildlife directly.  Contact information is available here: Wildlife Health Lab - Avian Investigations (ca.gov)

Stay Informed

For the latest updates in California domestic poultry, follow us on social media and subscribe. You can find us on Facebook at Animal Health Branch – CDFA and on Instagram at AnimalHealthBranch_CDFA.

For more information and updates on wild bird detections in California, visit the California Department of Fish and Wildlife website.

More information on avian influenza and how to protect flocks through biosecurity measures can be found on the U.S. Department of Agriculture’s website.