Feng said that sporadic individual cases of human-to-human transmission would not necessarily mean the virus can be transmitted effectively among humans.

Surveillance of people who have close contact with patients, particularly family members and healthcare providers, will be enhanced to help determine whether human-to-human H7N9 transmission is efficient or sporadic, Feng said.

About the broadcaster:

Emily Cheng is an editor at China Daily. She was born in Sydney, Australia and graduated from the University of Sydney with a degree in Media, English Literature and Politics. She has worked in the media industry since starting university and this is the third time she has settled abroad - she interned with a magazine in Hong Kong 2007 and studied at the University of Leeds in 2009.

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