State officials confirmed three additional cases of avian flu among poultry workers at a second farm in Weld County on Thursday, bringing the total number found in Coloradans to 10.

Nine of the cases in humans have come from two poultry farms and one from a dairy farm.

In response to the growing number of human infections, the Colorado Department of Public Health and Environment has launched a data table to track the number of cases that will be updated twice a week. The biweekly update will also provide the approximate number of people tested as well as a link to the Colorado Department of Agriculture for data on impacted farms.

The risk to the public continues to remain low, according to the Centers for Disease Control and Prevention (CDC).

Officials said they have not seen evidence of person-to-person transmission and state epidemiologists suspect exposure is tied to working directly with infected poultry.

State health workers earlier this month distributed antiviral medication to more than 150 workers who were potentially exposed to poultry infected with avian flu at a commercial egg facility in Weld County.

The new infections more than triples the number of human cases in the United States since 2022.

H5N1 —colloquially known as “bird flu” or “avian flu” — is widely found in wild birds, which cause outbreaks in poultry and U.S. dairy cows.

Risk depends on exposure, specifically to infected animals.

Coloradans should avoid touching sick or dead animals.

Individuals who must handle sick or dead animals should wear personal protective equipment — which includes an N95 respirator, eye protection and gloves — and should wash their hands with soap and water afterward handling.

The first case in the U.S. of bird flu in humans this year was identified in March.

More than 99 million birds in 48 states — including Colorado — have been affected by bird flu since 2022, according to the CDC. That number in Colorado is 1.8 million in five counties: Arapahoe, Delta, Larimer, Morgan and Weld.

H5N1 bird flu has a fatality rate of up to 90% in chickens, often within 48 hours, according to the CDC.

The last case of bird flu detected in humans in Colorado was two years ago.