U.S. hospitals are being urged to head off a spread of the new H7N9 avian influenza by looking out for people exhibiting flu-like symptoms who have traveled to China or had contact with someone who has the illness.

The Centers for Disease Control and Prevention held a conference call with health-care professionals yesterday to review procedures for treating bird-flu patients and controlling infections, Erin Burns, an agency spokeswoman, said in an e- mail. The Atlanta-based agency today issued interim guidance on the use of antiviral agents to treat H7N9 infections.

Issuing the guidance and holding the clinician calls “would be considered routine preparedness measures for an outbreak with pandemic potential,” Burns said.

China has recorded 92 human infections of the H7N9 strain of bird flu, with 17 of the cases fatal, according to data compiled by Bloomberg from national and provincial governments and the World Health Organization. The source of the infection hasn’t been identified and there is no evidence of person-to- person transmission, with many of the cases involving human contact with poultry, according to the CDC’s website.