Larger changes in the incubation period of avian influenza international requirements for the 21 days observation period

February 20, 2009
Source: The Chinese Government Network

This afternoon, the Ministry of Agriculture with the Ministry of Health will meet in Beijing to accept an interview with the Chinese government network. National Chief Veterinary Officer in Kangzhen, the Ministry of Health deputy director of the office of emergency and Yang Dong-ming, director of the National Influenza Center舒跃龙on Human infection of highly pathogenic avian influenza prevention and control work-related questions to answer users questions. In response to questions raised by netizens on Kangzhen express highly pathogenic avian influenza incubation period of greater change.

Following is a conference Abstract:
Moderator:

The incubation period of avian flu have long? The incubation period will not be transmitted? The route of transmission of avian influenza have what?

Yu Kangzhen:

The incubation period of avian influenza, generally recognized international or a week, but volatility is still relatively large. Some infections, like a few hours, more than a dozen hours or even days will be the incidence. Some can go a long ten days, or even 20 days before onset. The international community in order to facilitate the highly pathogenic avian influenza prevention and control, it provided a longer incubation period, because the back of the protective measures are based on the incubation period to decide. For example, there is no epidemic disinfection after how many days to lift the blockade, are based on the incubation period. Therefore the provisions of the international community are 21 days, after 21 days if there is no outbreak, as evidenced by the elimination of the epidemic was lost.

Again, within the incubation period can be transmitted, we often see it, such as farms, there are several waiting sheds, chicken coop when the beginning of the disease, we will as soon as possible to take urgent measures to kill all the chickens , disinfection and isolation, but after a few days, the incidence of sheds also. However, under normal circumstances or in the incidence of later, with symptoms after detoxification when the highest infection-prone, but do not rule out the incubation period will not be transmitted on.

(According to the Chinese government language broadcast network Finishing)