在昨日召开的上海市政府新闻发布会上，中国－世界卫生组织人感染H7N9禽流感防控联合考察组的专家们表示，到目前为止，还没有证据证明H7N9病毒可以实现持续的人际传播，对病毒能否实现有限的人际传播也还不能得出明确结论。

In the Shanghai government press conference held yesterday,China - the world health organization of human infection with H7N9 bird flu prevention and control of our joint study, experts said,So far,There's no evidence that H7N9 can achieve sustained human-to-human transmission of the virus,Limited human-to-human transmission to the realization of the rights of the virus is not clear conclusions.

　　发布会上，对于备受关注的疫苗何时能生产出来的问题， 联合考察组外方组长、世界卫生组织助理总干事福田敬二说，制作和生产疫苗有很多步骤。疫情开始时，世卫组织和很多机构就进行了许多工作，但到目前为止，还没有到制作疫苗这一步。因为还没确定要不要生产。如必要，疫苗的生产也大约需要4~6个月时间才可能上市。（记者陈庆辉、贺涵甫）

conference,In a closely watched when vaccines can production, Our joint study foreign leader/Who's assistant director-general keiji fukuda said,There are many steps to manufacture and production of vaccines.At the beginning of the outbreak,Who and many agencies conducted a lot of work,But so far,Hasn't this step to make vaccine.Because I'm not sure do you want to make.If necessary,Vaccine production takes about 4 ~ 6 months time can only be listed.(The reporter Chen Qinghui/He Hanfu)