Image Number K9314-2

Annie, born March 3, 2000, is a clone of a pure-bred Jersey calf whose cells were modified with genes for producing lysostaphin, a protein that kills Staphylococcus aureus bacteria, a leading cause of mastitis disease in dairy cows. She is the first transgenic cow clone engineered to resist mastitis, which costs the U.S. dairy industry $1.7 billion annually.

Photo by Scott Bauer

640 pixels wide: (k9314-2.jpg)