The latest news of H7N9 avian influenza： one patient died in Shanghai, and the national death toll was 40.

The latest news of H7N9 avian influenza: Another H7N9 patient died in Shanghai. The latest death toll in Shanghai is 16, and 33 people have been diagnosed with infection. According to the website of the State Health Planning Commission and media reports, as of June 27, 2013, 40 cases of H7N9 deaths were reported in mainland China. According to a study by the School of Medicine of the University of Hong Kong, the H7N9 epidemic has not passed, and it may reappear this fall.

According to the Shanghai Municipal Health and Family Planning Commission on the 26th, one case of human infection with H7N9 avian influenza died in Shanghai, and no new cases appeared. As of 16: 00 on the 26th, 33 cases of human infection with H7N9 avian influenza have been confirmed in Shanghai, of which 2 cases are under active treatment, 15 cases have recovered and discharged, and 16 cases have died after treatment.

Death patient Gu Mou, male, 56 years old, from Shanghai. On April 11, he was diagnosed as a confirmed case of human infection with H7N9 avian influenza. On April 19, he was transferred to the municipal public health clinical center for diagnosis and treatment. He died in the early morning of June 26 after active rescue.

In April this year, the first adult patient with H7N9 avian influenza in Shanghai was cured and discharged.

Has H7N9 passed? HKU School of Medicine says it will reappear this autumn.

According to the latest research released by Li Ka-shing Medical College of HKU on 24th, according to the seasonal epidemic trend of avian influenza A (H5N1), H7N9 may reappear this autumn. However, studies have also shown that the fatality rate of H7N9 infection in humans is slightly lower than that of H5N1.

At the same time, it was found that the incubation period of H7N9 was 3.1 days, which was shorter than 5 and 6 days in previous studies, and it was very close to the incubation period of H5N1 of 3.3 days. Liang Zhuowei, director of the Public Health Research Center of Li Ka-shing Medical College of the University of Hong Kong, pointed out that this achievement provided an important basis for clinical judgment and the length of the isolation period after the epidemic was discovered. It is understood that the isolation period is usually twice or two and a half times the incubation period, that is, 8 or 9 days of isolation is enough.

In addition, the study also provides evidence that H7N9 only has a low possibility of human transmission. After close follow-up of 2500 cases of contacts, only four potential secondary infections were found.

Liang Zhuowei said that the possibility of human-to-human transmission is not zero, but it is very close to zero. "That is, H7N9 has once again verified our previous suspicion that the risk of human-to-human transmission is quite low. That is, in most links, the infection comes from direct contact with birds. "

Based on the experience of H5N1 and seasonal epidemic trend, the research report thinks that H7N9 may reappear this autumn, which will be an opportunity to prepare for public health measures for disease prevention and control and strengthen the response ability to disease epidemic.

Observer Network synthesizes Xinhua News and Zhongxin News.