California health officials reported Tuesday that a child in Alameda County tested positive for H5 bird flu last week.The source of infection is not known — although health officials are looking into possible contact with wild birds — and the child is recovering at home with mild upper respiratory symptoms.

A child in Alameda County is believed to have a case of bird flu, despite no known contact with an infected animal.

A child is home and recovering after a possible case of bird flu in Alameda County, California, according to the California Department of Public Health. The child had mild upper respiratory symptoms and received treatment.