July 8, 2025 - As Mendocino County's fair season kicks off, state and local officials are urging caution due to heightened influenza risks from livestock. A statewide prohibition on poultry and dairy cattle exhibitions is already in effect for the 2025 season, a measure taken to combat the ongoing H5N1 avian flu outbreak.
The California Department of Food and Agriculture (CDFA) has barred all poultry and dairy cattle from fairs and exhibitions across the state to prevent the further spread of Highly Pathogenic Avian Influenza (H5N1). This decision directly impacts popular events at fairs such as the Mendocino County Fair & Apple Show in Boonville, where chickens, ducks, turkeys, and dairy cows will be absent. The ban aims to safeguard California's agricultural sector and reduce the potential for animal-to-human transmission. While beef cattle, sheep, goats, and swine are still permitted at shows, stringent biosecurity protocols are being emphasized.
In response to these changes, local youth organizations like 4-H clubs are adapting their programs, with some members focusing on non-animal competitions and increasing biosecurity education for projects with permitted livestock.
Concurrent with the state ban, the Mendocino County Department of Public Health has issued a warning regarding the risk of zoonotic flu viruses, particularly variant strains of swine flu (H1N1v, H1N2v, H3N2v) that can be transmitted from pigs to people. "While human infections with variant influenza viruses are not common, they do sporadically occur, most commonly among people who have direct contact or attendance at an agricultural fair where pigs are present," the department stated.
To ensure public safety, health officials recommend the following measures for all fair attendees:
Refrain from eating or drinking in animal barns and show arenas.
Avoid bringing personal items such as strollers, toys, and pacifiers into areas with animals.
Practice frequent handwashing with soap and water, particularly before and after animal contact.
Individuals experiencing flu-like symptoms should stay home to prevent the spread of illness to other people and animals.
Anyone who develops flu symptoms following a visit to a fair or after contact with pigs is encouraged to notify their healthcare provider about the possible exposure.