Drones have been reported near farms quarantined for bird flu at Adams, Allen, Jackson and Jay counties in Indiana and locations in Ohio. Security officials warn they could spread the virus.

The public health risk remains low, but bird flu variants have proven to be unpredictable, which is why the virus is a top priority for the federal government.

A flock of turkeys in eastern Indiana has tested positive for H5N1 or bird flu.

The USDA has outlined a five-point plan for regular bulk milk testing, which ramps up or down depending on whether any infected milk is detected.

State fairs can spread viruses from animals to humans. With bird flu found in cows for the first time ever, some experts advise caution.

Cattle are getting sick with H5N1, and one person got sick in Texas. How bad could this be for dairy farms? Could it spread among people? Here's what scientists are learning.