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2014-01-30 06:43 Source: Xinhua News Agency
According to Xinhua News Agency yesterday, Hangzhou City, Zhejiang
Province, Wei Planning Commission informed of human infection with H7N9
avian influenza cases family aggregation progress of the investigation.
In January, a family Xiaoshan District, Hangzhou clusters of cases
occur, three human cases, the exact cause of infection national and
provincial experts are studying.
His wife and daughter after the onset of men infected
Previously, Zhejiang Province, Wei Planning Bulletin, January 20,
49-year-old Yu Moumou Hangzhou Xiaoshan patient was diagnosed with human
cases of avian influenza H7N9 infection. Three days later, the
23-year-old daughter was diagnosed. Both were diagnosed as severe. 27,
the hospital again diagnosed, the patient's wife surname Wang Yu Moumou
also infected with the H7N9 bird flu, the disease is mild.
According to experts in the diagnosis and treatment of avian influenza
H7N9, Professor Liang Weifeng, deputy director of the School of
Medicine, Division of Infectious Diseases, First Affiliated Hospital,
Zhejiang University, introduced in a three-mouth, his father first
onset. From 21, had chaperoned daughter began to appear over 俞某某 throat,
fever appears from the 22nd, after the hospital virus detection,
diagnosis of human infection of H7N9 avian influenza. 22, accompanying
her husband's surname Wang had also appeared throat discomfort
associated with cough, sputum, etc., and on the 27th was diagnosed human
cases of avian influenza H7N9 infection. Currently, Yu Moumou have died
due to ineffective treatment.
Gathered undetermined etiology
The reason for the gathering of disease, some experts believe that there
are three common poultry exposure history; while some experts think
that the existence of interpersonal secondary transmission between them,
the first onset husband passed more likely his wife and daughter.
Currently, no clear conclusion of experts.
Chinese Academy of Engineering, said Li Lanjuan, even if it is from the
family clusters of cases ultimately recognized as limited human to human
transmission, we do not have to panic. Issued by the State from the
current perspective, sustained human to human transmission has not yet
appeared, but simply do not rule out limited non-sustained
human-to-human transmission. "The so-called 'limited' refers to the
limited scope of infection is the case in nature, rather than the
breadth of human to human transmission; while the so-called
'non-sustainable' means that there is no continuous passage of the
situation, there is only a mass of individual B, but found no ethylene
propylene re-transmission of three generations of cases. "Li Lanjuan
academician said.
H7N9 prevention and control expert, Zhejiang Chen Zhi Ping, deputy
director of the CDC also said that limited human to human transmission
is divided into two successor and efficient human to human transmission.
Limited human to human transmission is the probability of infection is
very low viral interpersonal phenomenon. In this outbreak, some people
are predisposed, it is easy to be infected with the virus, but generally
does not appear multiple generations of infection, is transmitted up to
a person and complete stop after infection.
http://www.dzwww.com/xinwen/guoneixinwen/201401/t20140130_9595931.htm
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Translation Google
Avian influenza, limited human to human transmission: the provincial CDC expert Q & A Reporter
January 30, 2014 07:22:21 Hangzhou Network
Prevention and control of avian influenza in the province at present the
situation is very serious, and have been found to have limited
non-sustained human-to-human transmission cases. Experts said that from
the current study to see, this particular case showed only a limited
non-sustained human-to-human transmission, the virus mutates from the
situation, not yet widespread phenomenon of human transmission, the
public need not panic too much. However, there are still questions about
people's minds: How to understand a limited human to human
transmission? As at 12:00 on January 27, the province of human infection
with H7N9 avian influenza increased the death toll to 12 people, why
the sudden increase in the number of cases of death? Suffering from the
flu during the Spring Festival, how doctor? To this end, the reporter
interviewed the deputy director of the Center for Disease Control and
Prevention Province Chen Zhi Ping, to answer them.
How to understand the limited human to human transmission
Reporter: How to correctly understand the limited human to human transmission?
Chen Zhi Ping: From the perspective of epidemiological analysis, human
to human transmission is divided into two limited human to human
transmission of and effective people. Limited human to human
transmission is the probability of infection is very low viral
interpersonal phenomenon. In this outbreak, some people are predisposed,
it is easy to be infected with the virus, but generally does not appear
multiple generations of infection, is transmitted up to a person and
complete stop after infection, the patient will not be three generations
or more on behalf of patients, it does not happen in the school, in the
workplace or party. This is the concept of limited human to human
transmission.
And effective human transmission is different. Such as seasonal flu,
influenza, etc. belong to this category. A patient can infect a number
of patients, the patients will find even second-generation
multi-generational phenomenon patient. Chain of transmission of the
virus is also very clear that such phenomena, especially in crowds
gathering area, such as schools, communities, units occur.
From the current research worldwide, the experts were unable to come up with valid evidence of H7N9 virus from person to person.
Reporter: there is more from our family clustering of cases, how to explain this phenomenon?
Chen Zhi Ping: For the family clustering of cases occurred in the
province of view, I think it causes more complex cases, including both
common exposure, there are factors that limited human to human
existence. After careful analysis of these cases found that patients
often have blood relations, and are in the process too intimate care on
the infection.
Why the sudden increase in deaths
Reporter: Zhejiang previously reported one case of deaths, why would the recent report of 11 new cases of deaths?
Chen Zhi Ping: This is for a reason. First B infectious H7N9 is legal,
according to the Communicable Disease Control Act and people infected
with H7N9 prevention and control programs, the situation H7N9 is by the
local health administrative departments regularly published on the
website of the community each month. Our province is in strict
accordance with the national prevention and control programs to outside
information published and will be released on April 15th of each month
epidemic, the middle will be the time difference. So please be concerned
about the circumstances of the province H7N9 epidemic users keep an eye
Provincial Health and Family Planning Commission's official website to
understand the situation.
From January 1 to play Jan. 27, the province a total of 49 cases of
human infection with H7N9 avian influenza cases, 12 cases of which died,
the mortality of 24.4%. The same time period, the national mortality
rate was 28.33%. And this value is compared to slightly lower mortality
in our province, but that does not mean that people can relax their
vigilance, hope the general public must do individual preventive work.
http://health.hangzhou.com.cn/new_4107962.html
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