Also first time for someone with H5 virus to be hospitalized, and CDC says it is studying patient specimen more

A person in Missouri with no known animal contact has tested positive for H5 bird flu, the state’s department of health and senior services said Friday.

It’s the first time a patient in the US outbreak has had no known exposure to sick animals. And it is the first time someone has been hospitalized with bird flu – though it’s not clear yet whether influenza was the reason for hospitalization or it was incidental.

The patient, who has underlying health conditions, was hospitalized on 22 August and tested positive for flu A. Doctors sent a sample to the Missouri state public health laboratory, where it was found to be of the H5 subtype, which is also known as highly pathogenic avian influenza – or bird flu.