An international dream team of flu experts assembled in China today.
Underscoring the urgency that public health agencies feel about the emergence of a new kind of bird flu, the team is headed by Dr. Keiji Fukuda, the World Health Organization's top influenza scientist.
Before he left Geneva, Fukuda explained the wide-open nature of the investigation in an interview with NPR.
Health officials in China say they've confirmed 11 new bird flu diagnoses, bringing the number of H7N9 infections to 60, with cases spread across several provinces, the official Xinhua news agency reports. The virus, which first infected people in Shanghai and eastern China, has now sickened at least one person in Beijing, along with two others in the central province of Henan.