4.1 An introduction to an industrial village
4.2Being a traveler，not a tourist
4.1 Toward a sustainable energy fu ture
4.2 Energy innovation
During 19-23 April, we visited laboratories, hospitals,clinics, live poultry markets, and affected areas in Shanghaiand had discussion with staff and experts from both Beijingand Shanghai. We would like to share some of our findingstoday.
First of all, we are impressed with the response by thegovernment of China. China has responded to this seriousoutbreak caused by a new influenza virus with strongleadership and a high level of commitment, and sound andeffective strategies such as health education, communicationand closure of live poultry markets.
Health authorities are well prepared and act quickly,effectively and professionally. Information including geneticsequence data and virus is shared in a timely way withinChina and with the international community through WHOunder the International Health Regulations.
The joint team visited the poultry market and theneighborhood in Shanghai where some infections werereported. According to available evidence, birds infected by thevirus, especially poultry, and the environment contaminatedby the virus are the most likely sources of infection. The risk ofinfection appears most concentrated in live poultry markets.
Almost all cases have been sporadic cases, but afew family clusters have been identified. However, we arenot sure if the clusters were caused by common exposureto a source of virus or due to limited person-to-persontransmission. Evidence so far is not sufficient to concludethere is person-to-person transmission. Moreover, nosustained person-to-person transmission has been found.
We want to note that if limited person-to-persontransmission is demonstrated in the future, it will not besurprising. Enhancing surveillance is the way to detectsuch occurrences early. The situation remains complex anddifficult and is evolving.