(CNN)– A newer strain of the bird flu virus has been detected in Nevada. According to the Nevada Department of Agriculture, 6 dairy herds in the state tested positive for a newer strain named D1.1.

Here's what parents need to know about the influenza vaccine for babies and children, plus why it's so important.

The new strain, D1.1, is different from the strain, B3.13, that has been detected in other dairy herds throughout the country ...