New cases 1 case in Chinese mainland H7N9 epidemic area in Beijing.

The epidemic situation of H7N9 influenza in Chinese mainland has slowed down, but after a lapse of 2 1 day, there were new cases 1 case in Beijing yesterday. The Central Epidemic Command Center announced that in order to strengthen the implementation of epidemic monitoring, mainland provinces and cities other than Hong Kong and Macao will be fully included in the epidemic area from June, and the incubation period of influenza will be revised from 10 to 14 days; Although the scope of alert has been expanded, except for new cases in Beijing, the travel alert has been maintained at level 2, and the other eight provinces 1 have been reduced to level 1.

The Central Epidemic Command Center announced that mainland provinces and cities except Hong Kong and Macao will be fully included in the H7N9 influenza epidemic area from June, and people who enter these areas and have pneumonia symptoms will be strengthened. Notify and test patients with pneumonia.

Zhang Fengyi, commander of the epidemic center, said that according to the resolution of the 27th meeting of the Influenza Prevention and Control Group of the Infectious Diseases Advisory Committee, the definition of H7N9 influenza cases is scheduled to be revised from June. The two-month monitoring experience shows that the confirmed cases of H7N9 influenza rarely appear mild symptoms, and the sensitivity of initial detection is low. Therefore, the clinical condition is revised to "should meet the symptoms of pneumonia", that is, only suspected cases of pneumonia patients are notified and tested.

The areas where H7N9 influenza cases have occurred in Chinese mainland include: Beijing, Shanghai, Jiangsu, Zhejiang, Anhui, Henan, Shandong, Jiangxi, Fujian and Hunan. The cumulative number of confirmed cases was 13 1, of which 37 cases died.

Expand the list of provinces and cities in Chinese mainland as epidemic areas.

Although it has not spread to other provinces and cities recently, the command center announced that the epidemic area has expanded to "all provinces and cities in Chinese mainland, excluding Hong Kong and Macao", the epidemiological conditions have been revised to "previous contact with birds or visits to places related to birds", and the "incubation period" has also increased to 14 days.

Zhuang, director of the Epidemic Center of CDC, explained that the distribution of H7N9 influenza infection in Chinese mainland is not clear enough, and the trend of poultry is unpredictable. Therefore, the definition of epidemic areas has been extended to include all provinces and cities in Chinese mainland except Hong Kong and Macao. The incubation period correction is based on the document recommendation of the World Health Organization. The command center pointed out that although the study showed that the time of H7N9 influenza was not too long, WHO suggested using relatively wide data, so China followed suit and kept pace with the international practice.

Beijing maintains a second-class tourist alert.

Also, due to the expansion of epidemic areas, all provinces and cities in Chinese mainland should be included in the first-level "concern" of tourism epidemic; As for the eight provinces and two cities that have had cases and are currently in the second-level "early warning", except for Beijing, the travel early warning of other provinces and cities has been lowered to the first level.

The command center pointed out that in the future, as long as there are new cases in Chinese mainland, the province and city will be upgraded to the second-level travel alert. Relatively speaking, if there are no new cases in Beijing in the next 28 days, the travel warning will be lowered to the first level.

Poultry does not carry H7N9 virus.

According to the Agriculture Committee, as of May 26th, 394 chickens, 6 ducks 178 geese, 496 pet birds, 39 pig farms, 75 local poultry vendors and 2,497 migratory birds were sampled and monitored, and no antibody or virus of H7N9 subtype avian influenza was detected.