The agency, in a statement this week, was responding to a rare human case of H5N1 avian influenza reported in a person at a Texas dairy farm who was presumed to have been infected by sick cattle. "People should avoid unprotected exposures to sick or dead animals including wild birds, poultry, other domesticated birds, and other wild or domesticated animals (including cattle), as well as with animal carcasses, raw milk, feces (poop), litter, or materials contaminated by birds or other animals with confirmed or suspected HPAI A(H5N1)-virus infection," said the CDC's notice.