A new type of bird flu found in a dairy worker in Nevada: important information.

A dairy worker in Nevada got a new type of bird flu. This bird flu is different from the one spreading in animals since last year. The worker had mild symptoms, like eye redness, and got better without needing to go to the hospital.

This new bird flu had been seen before in people who worked with birds, but this is the first time someone got it from a cow. The worker got infected at a farm in Nevada, but health officials say the virus didn't spread to anyone else.

The bird flu spreading now is called H5N1, but there are different types of H5N1. One type, called B3.13, spread to cows last year, mostly in California.

The new type found in Nevada is called D1.1, and it was found in milk from cows. This means that bird flu spread from wild birds to cows at least two separate times, which worries experts.

Many people in the US got bird flu in the last year, but almost all of them worked with birds or cows. The new D1.1 type caused one death and one severe illness, but health officials say the risk to most people is still low.